55253913 has 48 divisors (see below), whose sum is σ = 90422976. Its totient is φ = 29566080.

The previous prime is 55253911. The next prime is 55253921. The reversal of 55253913 is 31935255.

It is not a de Polignac number, because 55253913 - 2¹ = 55253911 is a prime.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55253911) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 936478 + ... + 936536.

It is an arithmetic number, because the mean of its divisors is an integer number (1883812).

Almost surely, 2^55253913 is an apocalyptic number.

It is an amenable number.

55253913 is a deficient number, since it is larger than the sum of its proper divisors (35169063).

55253913 is a wasteful number, since it uses less digits than its factorization.

55253913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182 (or 123 counting only the distinct ones).

The product of its digits is 20250, while the sum is 33.

The square root of 55253913 is about 7433.2975858632. The cubic root of 55253913 is about 380.8795714753.

The spelling of 55253913 in words is "fifty-five million, two hundred fifty-three thousand, nine hundred thirteen".