52665525 has 96 divisors (see below), whose sum is σ = 108743040. Its totient is φ = 24768000.

The previous prime is 52665499. The next prime is 52665527. The reversal of 52665525 is 52556625.

It is not a de Polignac number, because 52665525 - 2¹¹ = 52663477 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52665525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52665527) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 304339 + ... + 304511.

It is an arithmetic number, because the mean of its divisors is an integer number (1132740).

Almost surely, 2^52665525 is an apocalyptic number.

52665525 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

52665525 is an abundant number, since it is smaller than the sum of its proper divisors (56077515).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52665525 is a wasteful number, since it uses less digits than its factorization.

52665525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244 (or 233 counting only the distinct ones).

The product of its digits is 90000, while the sum is 36.

The square root of 52665525 is about 7257.1016942027. The cubic root of 52665525 is about 374.8367289238.

Subtracting from 52665525 its reverse (52556625), we obtain a square (108900 = 330²).

The spelling of 52665525 in words is "fifty-two million, six hundred sixty-five thousand, five hundred twenty-five".