56610551 has 8 divisors (see below), whose sum is σ = 57950880. Its totient is φ = 55285632.

The previous prime is 56610539. The next prime is 56610553. The reversal of 56610551 is 15501665.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56610551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56610553) 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, 3755 + ... + 11283.

It is an arithmetic number, because the mean of its divisors is an integer number (7243860).

Almost surely, 2^56610551 is an apocalyptic number.

56610551 is a deficient number, since it is larger than the sum of its proper divisors (1340329).

56610551 is a wasteful number, since it uses less digits than its factorization.

56610551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7705.

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 56610551 is about 7523.9983386495. The cubic root of 56610551 is about 383.9716210762.

The spelling of 56610551 in words is "fifty-six million, six hundred ten thousand, five hundred fifty-one".