56773155 has 16 divisors (see below), whose sum is σ = 93970080. Its totient is φ = 29234688.

The previous prime is 56773147. The next prime is 56773169. The reversal of 56773155 is 55137765.

It is a happy number.

It is not a de Polignac number, because 56773155 - 2³ = 56773147 is a prime.

It is a super-2 number, since 2×56773155² = 6446382257308050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64822 + ... + 65691.

It is an arithmetic number, because the mean of its divisors is an integer number (5873130).

Almost surely, 2^56773155 is an apocalyptic number.

56773155 is a deficient number, since it is larger than the sum of its proper divisors (37196925).

56773155 is a wasteful number, since it uses less digits than its factorization.

56773155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130550.

The product of its digits is 110250, while the sum is 39.

The square root of 56773155 is about 7534.7962812541. The cubic root of 56773155 is about 384.3389003046.

The spelling of 56773155 in words is "fifty-six million, seven hundred seventy-three thousand, one hundred fifty-five".