55966377 has 16 divisors (see below), whose sum is σ = 77749760. Its totient is φ = 35769600.

The previous prime is 55966307. The next prime is 55966387. The reversal of 55966377 is 77366955.

It is a happy number.

It is not a de Polignac number, because 55966377 - 2⁸ = 55966121 is a prime.

It is a super-2 number, since 2×55966377² = 6264470709012258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55966307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7377 + ... + 12897.

It is an arithmetic number, because the mean of its divisors is an integer number (4859360).

Almost surely, 2^55966377 is an apocalyptic number.

It is an amenable number.

55966377 is a deficient number, since it is larger than the sum of its proper divisors (21783383).

55966377 is a wasteful number, since it uses less digits than its factorization.

55966377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5664.

The product of its digits is 1190700, while the sum is 48.

The square root of 55966377 is about 7481.0679050521. The cubic root of 55966377 is about 382.5096515998.

The spelling of 55966377 in words is "fifty-five million, nine hundred sixty-six thousand, three hundred seventy-seven".