56540055 has 64 divisors (see below), whose sum is σ = 108928512. Its totient is φ = 24675840.

The previous prime is 56540047. The next prime is 56540087. The reversal of 56540055 is 55004565.

It is not a de Polignac number, because 56540055 - 2³ = 56540047 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 91929 + ... + 92541.

It is an arithmetic number, because the mean of its divisors is an integer number (1702008).

Almost surely, 2^56540055 is an apocalyptic number.

56540055 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

56540055 is a deficient number, since it is larger than the sum of its proper divisors (52388457).

56540055 is a wasteful number, since it uses less digits than its factorization.

56540055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688.

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 56540055 is about 7519.3121360933. The cubic root of 56540055 is about 383.8121707815.

The spelling of 56540055 in words is "fifty-six million, five hundred forty thousand, fifty-five".