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7505425 = 52331907
BaseRepresentation
bin11100101000011000010001
3112010022111201
4130220120101
53410133200
6424511201
7120536464
oct34503021
915108451
107505425
114266a34
12261b501
13172a2a5
14dd52db
159d3c6a
hex728611

7505425 has 12 divisors (see below), whose sum is σ = 9345136. Its totient is φ = 5979600.

The previous prime is 7505423. The next prime is 7505431. The reversal of 7505425 is 5245057.

It is not a de Polignac number, because 7505425 - 21 = 7505423 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7505393 and 7505402.

It is not an unprimeable number, because it can be changed into a prime (7505423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7822 + ... + 8728.

Almost surely, 27505425 is an apocalyptic number.

It is an amenable number.

7505425 is a deficient number, since it is larger than the sum of its proper divisors (1839711).

7505425 is a wasteful number, since it uses less digits than its factorization.

7505425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248 (or 1243 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 28.

The square root of 7505425 is about 2739.6030734397. The cubic root of 7505425 is about 195.7905665879.

The spelling of 7505425 in words is "seven million, five hundred five thousand, four hundred twenty-five".

Divisors: 1 5 25 331 907 1655 4535 8275 22675 300217 1501085 7505425