56525661 has 16 divisors (see below), whose sum is σ = 83904000. Its totient is φ = 37610784.

The previous prime is 56525657. The next prime is 56525671. The reversal of 56525661 is 16652565.

It is a happy number.

It is not a de Polignac number, because 56525661 - 2² = 56525657 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56525621) 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, 14665 + ... + 18113.

It is an arithmetic number, because the mean of its divisors is an integer number (5244000).

Almost surely, 2^56525661 is an apocalyptic number.

It is an amenable number.

56525661 is a deficient number, since it is larger than the sum of its proper divisors (27378339).

56525661 is a wasteful number, since it uses less digits than its factorization.

56525661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4065 (or 4059 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

The square root of 56525661 is about 7518.3549397458. The cubic root of 56525661 is about 383.7795976422.

The spelling of 56525661 in words is "fifty-six million, five hundred twenty-five thousand, six hundred sixty-one".