52685725 has 12 divisors (see below), whose sum is σ = 65548756. Its totient is φ = 42007680.

The previous prime is 52685723. The next prime is 52685749. The reversal of 52685725 is 52758625.

It can be written as a sum of positive squares in 6 ways, for example, as 1004004 + 51681721 = 1002^2 + 7189^2 .

It is not a de Polignac number, because 52685725 - 2¹ = 52685723 is a prime.

It is a super-3 number, since 3×52685725³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52685723) 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, 4459 + ... + 11191.

Almost surely, 2^52685725 is an apocalyptic number.

It is an amenable number.

52685725 is a deficient number, since it is larger than the sum of its proper divisors (12863031).

52685725 is a wasteful number, since it uses less digits than its factorization.

52685725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7056 (or 7051 counting only the distinct ones).

The product of its digits is 168000, while the sum is 40.

The square root of 52685725 is about 7258.4933009544. The cubic root of 52685725 is about 374.8846460010.

Subtracting 52685725 from its reverse (52758625), we obtain a square (72900 = 270²).

The spelling of 52685725 in words is "fifty-two million, six hundred eighty-five thousand, seven hundred twenty-five".