55358013 has 16 divisors (see below), whose sum is σ = 77503680. Its totient is φ = 35097216.

The previous prime is 55357993. The next prime is 55358021. The reversal of 55358013 is 31085355.

It is not a de Polignac number, because 55358013 - 2⁶ = 55357949 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55358053) 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, 1081 + ... + 10577.

It is an arithmetic number, because the mean of its divisors is an integer number (4843980).

Almost surely, 2^55358013 is an apocalyptic number.

It is an amenable number.

55358013 is a deficient number, since it is larger than the sum of its proper divisors (22145667).

55358013 is a wasteful number, since it uses less digits than its factorization.

55358013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9596.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 55358013 is about 7440.2965666699. The cubic root of 55358013 is about 381.1186175263.

The spelling of 55358013 in words is "fifty-five million, three hundred fifty-eight thousand, thirteen".