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52506625 = 531724709
BaseRepresentation
bin1100100001001…
…1000000000001
310122210121112211
43020103000001
5101420203000
65113222121
71205204353
oct310230001
9118717484
1052506625
1127703006
1215701941
13ab55312
146d8b0d3
1549227ba
hex3213001

52506625 has 16 divisors (see below), whose sum is σ = 69385680. Its totient is φ = 39532800.

The previous prime is 52506613. The next prime is 52506647. The reversal of 52506625 is 52660525.

It can be written as a sum of positive squares in 8 ways, for example, as 6822544 + 45684081 = 2612^2 + 6759^2 .

It is not a de Polignac number, because 52506625 - 25 = 52506593 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 10230 + ... + 14479.

It is an arithmetic number, because the mean of its divisors is an integer number (4336605).

Almost surely, 252506625 is an apocalyptic number.

It is an amenable number.

52506625 is a deficient number, since it is larger than the sum of its proper divisors (16879055).

52506625 is a wasteful number, since it uses less digits than its factorization.

52506625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24741 (or 24731 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 52506625 is about 7246.1455271061. The cubic root of 52506625 is about 374.4593691047.

The spelling of 52506625 in words is "fifty-two million, five hundred six thousand, six hundred twenty-five".

Divisors: 1 5 17 25 85 125 425 2125 24709 123545 420053 617725 2100265 3088625 10501325 52506625