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6423625 = 53135967
BaseRepresentation
bin11000100000010001001001
3110002100120001
4120200101021
53121024000
6345403001
7105412525
oct30402111
913070501
106423625
11369818a
122199461
13143ba80
14bd2d85
1586d46a
hex620449

6423625 has 32 divisors (see below), whose sum is σ = 8910720. Its totient is φ = 4593600.

The previous prime is 6423623. The next prime is 6423629. The reversal of 6423625 is 5263246.

It is a happy number.

It is not a de Polignac number, because 6423625 - 21 = 6423623 is a prime.

Its product of digits (8640) is a multiple of the sum of its prime divisors (144).

It is a junction number, because it is equal to n+sod(n) for n = 6423593 and 6423602.

It is not an unprimeable number, because it can be changed into a prime (6423623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 95842 + ... + 95908.

It is an arithmetic number, because the mean of its divisors is an integer number (278460).

Almost surely, 26423625 is an apocalyptic number.

6423625 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6423625 is a deficient number, since it is larger than the sum of its proper divisors (2487095).

6423625 is a wasteful number, since it uses less digits than its factorization.

6423625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154 (or 144 counting only the distinct ones).

The product of its digits is 8640, while the sum is 28.

The square root of 6423625 is about 2534.4871276059. The cubic root of 6423625 is about 185.8917260155.

It can be divided in two parts, 64236 and 25, that added together give a triangular number (64261 = T358).

The spelling of 6423625 in words is "six million, four hundred twenty-three thousand, six hundred twenty-five".

Divisors: 1 5 13 25 59 65 67 125 295 325 335 767 871 1475 1625 1675 3835 3953 4355 7375 8375 19175 19765 21775 51389 95875 98825 108875 256945 494125 1284725 6423625