56611457 has 4 divisors (see below), whose sum is σ = 64698816. Its totient is φ = 48524100.

The previous prime is 56611421. The next prime is 56611459. The reversal of 56611457 is 75411665.

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 56611457 - 2¹² = 56607361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56611459) 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, 4043669 + ... + 4043682.

It is an arithmetic number, because the mean of its divisors is an integer number (16174704).

Almost surely, 2^56611457 is an apocalyptic number.

It is an amenable number.

56611457 is a deficient number, since it is larger than the sum of its proper divisors (8087359).

56611457 is an equidigital number, since it uses as much as digits as its factorization.

56611457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8087358.

The product of its digits is 25200, while the sum is 35.

The square root of 56611457 is about 7524.0585457584. The cubic root of 56611457 is about 383.9736694366.

The spelling of 56611457 in words is "fifty-six million, six hundred eleven thousand, four hundred fifty-seven".