55776117 has 8 divisors (see below), whose sum is σ = 76097824. Its totient is φ = 36319248.

The previous prime is 55776107. The next prime is 55776137. The reversal of 55776117 is 71167755.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55776117 - 2⁶ = 55776053 is a prime.

It is a super-2 number, since 2×55776117² = 6221950455195378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55776107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216058 + ... + 216315.

It is an arithmetic number, because the mean of its divisors is an integer number (9512228).

Almost surely, 2^55776117 is an apocalyptic number.

It is an amenable number.

55776117 is a deficient number, since it is larger than the sum of its proper divisors (20321707).

55776117 is a wasteful number, since it uses less digits than its factorization.

55776117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432419.

The product of its digits is 51450, while the sum is 39.

The square root of 55776117 is about 7468.3409804320. The cubic root of 55776117 is about 382.0757070603.

The spelling of 55776117 in words is "fifty-five million, seven hundred seventy-six thousand, one hundred seventeen".