51102223405 has 16 divisors (see below), whose sum is σ = 61795843200. Its totient is φ = 40566634560.

The previous prime is 51102223391. The next prime is 51102223409. The reversal of 51102223405 is 50432220115.

It is not a de Polignac number, because 51102223405 - 2²³ = 51093834797 is a prime.

It is a super-2 number, since 2×51102223405² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51102223405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51102223409) 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, 1399075 + ... + 1435135.

It is an arithmetic number, because the mean of its divisors is an integer number (3862240200).

Almost surely, 2^51102223405 is an apocalyptic number.

It is an amenable number.

51102223405 is a deficient number, since it is larger than the sum of its proper divisors (10693619795).

51102223405 is a wasteful number, since it uses less digits than its factorization.

51102223405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38244.

The product of its (nonzero) digits is 2400, while the sum is 25.

The spelling of 51102223405 in words is "fifty-one billion, one hundred two million, two hundred twenty-three thousand, four hundred five".