55776357 has 120 divisors (see below), whose sum is σ = 111234816. Its totient is φ = 27542592.

The previous prime is 55776283. The next prime is 55776377. The reversal of 55776357 is 75367755.

55776357 is a `hidden beast` number, since 5 + 5 + 7 + 7 + 635 + 7 = 666.

It is not a de Polignac number, because 55776357 - 2¹⁴ = 55759973 is a prime.

It is a super-2 number, since 2×55776357² = 6222004000382898, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55776377) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 1186708 + ... + 1186754.

Almost surely, 2^55776357 is an apocalyptic number.

It is an amenable number.

55776357 is a deficient number, since it is larger than the sum of its proper divisors (55458459).

55776357 is a wasteful number, since it uses less digits than its factorization.

55776357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109 (or 93 counting only the distinct ones).

The product of its digits is 771750, while the sum is 45.

The square root of 55776357 is about 7468.3570482403. The cubic root of 55776357 is about 382.0762550729.

The spelling of 55776357 in words is "fifty-five million, seven hundred seventy-six thousand, three hundred fifty-seven".