525656560 has 80 divisors (see below), whose sum is σ = 1435845600. Its totient is φ = 176440320.

The previous prime is 525656539. The next prime is 525656561. The reversal of 525656560 is 65656525.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525656561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11535 + ... + 34414.

It is an arithmetic number, because the mean of its divisors is an integer number (17948070).

Almost surely, 2^525656560 is an apocalyptic number.

It is an amenable number.

525656560 is an abundant number, since it is smaller than the sum of its proper divisors (910189040).

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

525656560 is a wasteful number, since it uses less digits than its factorization.

525656560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45986 (or 45980 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 40.

The square root of 525656560 is about 22927.2013119787. The cubic root of 525656560 is about 807.0504726725.

It can be divided in two parts, 5256 and 56560, that added together give a palindrome (61816).

The spelling of 525656560 in words is "five hundred twenty-five million, six hundred fifty-six thousand, five hundred sixty".