56602551 has 4 divisors (see below), whose sum is σ = 75470072. Its totient is φ = 37735032.

The previous prime is 56602543. The next prime is 56602561. The reversal of 56602551 is 15520665.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 56602551 - 2³ = 56602543 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 (56602561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9433756 + ... + 9433761.

It is an arithmetic number, because the mean of its divisors is an integer number (18867518).

Almost surely, 2^56602551 is an apocalyptic number.

56602551 is a deficient number, since it is larger than the sum of its proper divisors (18867521).

56602551 is a wasteful number, since it uses less digits than its factorization.

56602551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18867520.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 56602551 is about 7523.4666876381. The cubic root of 56602551 is about 383.9535330601.

The spelling of 56602551 in words is "fifty-six million, six hundred two thousand, five hundred fifty-one".