51904055 has 16 divisors (see below), whose sum is σ = 73638720. Its totient is φ = 34363392.

The previous prime is 51904051. The next prime is 51904063. The reversal of 51904055 is 55040915.

It is not a de Polignac number, because 51904055 - 2² = 51904051 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51904051) 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, 24554 + ... + 26583.

It is an arithmetic number, because the mean of its divisors is an integer number (4602420).

Almost surely, 2^51904055 is an apocalyptic number.

51904055 is a deficient number, since it is larger than the sum of its proper divisors (21734665).

51904055 is a wasteful number, since it uses less digits than its factorization.

51904055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51178.

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 51904055 is about 7204.4468906364. The cubic root of 51904055 is about 373.0214129499.

The spelling of 51904055 in words is "fifty-one million, nine hundred four thousand, fifty-five".