55365931 has 4 divisors (see below), whose sum is σ = 55396872. Its totient is φ = 55334992.

The previous prime is 55365917. The next prime is 55365941. The reversal of 55365931 is 13956355.

55365931 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55365931 - 2¹³ = 55357739 is a prime.

It is a super-2 number, since 2×55365931² = 6130772630993522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55365941) 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 3 ways as a sum of consecutive naturals, for example, 12610 + ... + 16423.

It is an arithmetic number, because the mean of its divisors is an integer number (13849218).

Almost surely, 2^55365931 is an apocalyptic number.

55365931 is a deficient number, since it is larger than the sum of its proper divisors (30941).

55365931 is a wasteful number, since it uses less digits than its factorization.

55365931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30940.

The product of its digits is 60750, while the sum is 37.

The square root of 55365931 is about 7440.8286500900. The cubic root of 55365931 is about 381.1367874544.

The spelling of 55365931 in words is "fifty-five million, three hundred sixty-five thousand, nine hundred thirty-one".