56155051 has 4 divisors (see below), whose sum is σ = 59110600. Its totient is φ = 53199504.

The previous prime is 56155039. The next prime is 56155103. The reversal of 56155051 is 15055165.

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

It is a cyclic number.

It is not a de Polignac number, because 56155051 - 2⁵ = 56155019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56155951) 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, 1477746 + ... + 1477783.

It is an arithmetic number, because the mean of its divisors is an integer number (14777650).

Almost surely, 2^56155051 is an apocalyptic number.

56155051 is a deficient number, since it is larger than the sum of its proper divisors (2955549).

56155051 is a wasteful number, since it uses less digits than its factorization.

56155051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2955548.

The product of its (nonzero) digits is 3750, while the sum is 28.

The square root of 56155051 is about 7493.6673932061. The cubic root of 56155051 is about 382.9390086646.

The spelling of 56155051 in words is "fifty-six million, one hundred fifty-five thousand, fifty-one".