56002155 has 32 divisors (see below), whose sum is σ = 98316288. Its totient is φ = 26995200.

The previous prime is 56002153. The next prime is 56002157. The reversal of 56002155 is 55120065.

It is an interprime number because it is at equal distance from previous prime (56002153) and next prime (56002157).

It is not a de Polignac number, because 56002155 - 2¹ = 56002153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56002153) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30627 + ... + 32403.

It is an arithmetic number, because the mean of its divisors is an integer number (3072384).

Almost surely, 2^56002155 is an apocalyptic number.

56002155 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

56002155 is a deficient number, since it is larger than the sum of its proper divisors (42314133).

56002155 is a wasteful number, since it uses less digits than its factorization.

56002155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1987.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 56002155 is about 7483.4587591568. The cubic root of 56002155 is about 382.5911440709.

The spelling of 56002155 in words is "fifty-six million, two thousand, one hundred fifty-five".