55774379907 has 24 divisors (see below), whose sum is σ = 82171842480. Its totient is φ = 36444119040.

The previous prime is 55774379783. The next prime is 55774379933. The reversal of 55774379907 is 70997347755.

55774379907 is a `hidden beast` number, since 557 + 7 + 4 + 3 + 79 + 9 + 0 + 7 = 666.

It is not a de Polignac number, because 55774379907 - 2⁷ = 55774379779 is a prime.

It is a super-2 number, since 2×55774379907² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55774379707) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23107 + ... + 334787.

It is an arithmetic number, because the mean of its divisors is an integer number (3423826770).

Almost surely, 2^55774379907 is an apocalyptic number.

55774379907 is a deficient number, since it is larger than the sum of its proper divisors (26397462573).

55774379907 is a wasteful number, since it uses less digits than its factorization.

55774379907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312083 (or 312080 counting only the distinct ones).

The product of its (nonzero) digits is 58344300, while the sum is 63.

The spelling of 55774379907 in words is "fifty-five billion, seven hundred seventy-four million, three hundred seventy-nine thousand, nine hundred seven".