55677897 has 12 divisors (see below), whose sum is σ = 87735024. Its totient is φ = 33744120.

The previous prime is 55677893. The next prime is 55677899. The reversal of 55677897 is 79877655.

55677897 is a `hidden beast` number, since 5 + 567 + 78 + 9 + 7 = 666.

55677897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55677897 - 2² = 55677893 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55677893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 281103 + ... + 281300.

It is an arithmetic number, because the mean of its divisors is an integer number (7311252).

Almost surely, 2^55677897 is an apocalyptic number.

It is an amenable number.

55677897 is a deficient number, since it is larger than the sum of its proper divisors (32057127).

55677897 is a wasteful number, since it uses less digits than its factorization.

55677897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562420 (or 562417 counting only the distinct ones).

The product of its digits is 3704400, while the sum is 54.

The square root of 55677897 is about 7461.7623253492. The cubic root of 55677897 is about 381.8513008223.

The spelling of 55677897 in words is "fifty-five million, six hundred seventy-seven thousand, eight hundred ninety-seven".