56612521 has 8 divisors (see below), whose sum is σ = 65666240. Its totient is φ = 47800368.

The previous prime is 56612519. The next prime is 56612527. The reversal of 56612521 is 12521665.

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

It is not a de Polignac number, because 56612521 - 2¹ = 56612519 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 56612521.

It is not an unprimeable number, because it can be changed into a prime (56612527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59886 + ... + 60823.

It is an arithmetic number, because the mean of its divisors is an integer number (8208280).

Almost surely, 2^56612521 is an apocalyptic number.

It is an amenable number.

56612521 is a deficient number, since it is larger than the sum of its proper divisors (9053719).

56612521 is a wasteful number, since it uses less digits than its factorization.

56612521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120783.

The product of its digits is 3600, while the sum is 28.

The square root of 56612521 is about 7524.1292519467. The cubic root of 56612521 is about 383.9760749887.

The spelling of 56612521 in words is "fifty-six million, six hundred twelve thousand, five hundred twenty-one".