55359657 has 6 divisors (see below), whose sum is σ = 79963962. Its totient is φ = 36906432.

The previous prime is 55359649. The next prime is 55359697. The reversal of 55359657 is 75695355.

55359657 is a `hidden beast` number, since 5 + 5 + 3 + 596 + 57 = 666.

55359657 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 55041561 + 318096 = 7419^2 + 564^2 .

It is not a de Polignac number, because 55359657 - 2³ = 55359649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55359617) 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 5 ways as a sum of consecutive naturals, for example, 3075528 + ... + 3075545.

It is an arithmetic number, because the mean of its divisors is an integer number (13327327).

Almost surely, 2^55359657 is an apocalyptic number.

It is an amenable number.

55359657 is a deficient number, since it is larger than the sum of its proper divisors (24604305).

55359657 is a wasteful number, since it uses less digits than its factorization.

55359657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6151079 (or 6151076 counting only the distinct ones).

The product of its digits is 708750, while the sum is 45.

The square root of 55359657 is about 7440.4070453168. The cubic root of 55359657 is about 381.1223902580.

The spelling of 55359657 in words is "fifty-five million, three hundred fifty-nine thousand, six hundred fifty-seven".