56526661 has 8 divisors (see below), whose sum is σ = 57839040. Its totient is φ = 55226208.

The previous prime is 56526643. The next prime is 56526667. The reversal of 56526661 is 16662565.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56526661 - 2¹⁷ = 56395589 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56526661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56526667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6985 + ... + 12721.

It is an arithmetic number, because the mean of its divisors is an integer number (7229880).

Almost surely, 2^56526661 is an apocalyptic number.

It is an amenable number.

56526661 is a deficient number, since it is larger than the sum of its proper divisors (1312379).

56526661 is a wasteful number, since it uses less digits than its factorization.

56526661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5963.

The product of its digits is 64800, while the sum is 37.

The square root of 56526661 is about 7518.4214433616. The cubic root of 56526661 is about 383.7818607874.

The spelling of 56526661 in words is "fifty-six million, five hundred twenty-six thousand, six hundred sixty-one".