55370913 has 16 divisors (see below), whose sum is σ = 82965120. Its totient is φ = 32592384.

The previous prime is 55370911. The next prime is 55370923. The reversal of 55370913 is 31907355.

It is not a de Polignac number, because 55370913 - 2¹ = 55370911 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55370911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29968 + ... + 31761.

It is an arithmetic number, because the mean of its divisors is an integer number (5185320).

Almost surely, 2^55370913 is an apocalyptic number.

It is an amenable number.

55370913 is a deficient number, since it is larger than the sum of its proper divisors (27594207).

55370913 is a wasteful number, since it uses less digits than its factorization.

55370913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61768.

The product of its (nonzero) digits is 14175, while the sum is 33.

The square root of 55370913 is about 7441.1634171009. The cubic root of 55370913 is about 381.1482190724.

The spelling of 55370913 in words is "fifty-five million, three hundred seventy thousand, nine hundred thirteen".