55977707 has 12 divisors (see below), whose sum is σ = 58448256. Its totient is φ = 53570880.

The previous prime is 55977679. The next prime is 55977721. The reversal of 55977707 is 70777955.

It is not a de Polignac number, because 55977707 - 2⁶ = 55977643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55977737) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 292982 + ... + 293172.

It is an arithmetic number, because the mean of its divisors is an integer number (4870688).

Almost surely, 2^55977707 is an apocalyptic number.

55977707 is a deficient number, since it is larger than the sum of its proper divisors (2470549).

55977707 is an equidigital number, since it uses as much as digits as its factorization.

55977707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406 (or 317 counting only the distinct ones).

The product of its (nonzero) digits is 540225, while the sum is 47.

The square root of 55977707 is about 7481.8251115620. The cubic root of 55977707 is about 382.5354619891.

The spelling of 55977707 in words is "fifty-five million, nine hundred seventy-seven thousand, seven hundred seven".