56896557 has 4 divisors (see below), whose sum is σ = 75862080. Its totient is φ = 37931036.

The previous prime is 56896547. The next prime is 56896559. The reversal of 56896557 is 75569865.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56896557 - 2⁶ = 56896493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56896559) 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, 9482757 + ... + 9482762.

It is an arithmetic number, because the mean of its divisors is an integer number (18965520).

Almost surely, 2^56896557 is an apocalyptic number.

It is an amenable number.

56896557 is a deficient number, since it is larger than the sum of its proper divisors (18965523).

56896557 is a wasteful number, since it uses less digits than its factorization.

56896557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18965522.

The product of its digits is 2268000, while the sum is 51.

The square root of 56896557 is about 7542.9806442811. The cubic root of 56896557 is about 384.6171648420.

It can be divided in two parts, 5689 and 6557, that added together give a triangular number (12246 = T₁₅₆).

The spelling of 56896557 in words is "fifty-six million, eight hundred ninety-six thousand, five hundred fifty-seven".