51131504354 has 16 divisors (see below), whose sum is σ = 87657336000. Its totient is φ = 21912669744.

The previous prime is 51131504341. The next prime is 51131504399. The reversal of 51131504354 is 45340513115.

It is a super-2 number, since 2×51131504354² (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 51131504354.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 443072 + ... + 546420.

It is an arithmetic number, because the mean of its divisors is an integer number (5478583500).

Almost surely, 2^51131504354 is an apocalyptic number.

51131504354 is a deficient number, since it is larger than the sum of its proper divisors (36525831646).

51131504354 is a wasteful number, since it uses less digits than its factorization.

51131504354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138697.

The product of its (nonzero) digits is 18000, while the sum is 32.

The spelling of 51131504354 in words is "fifty-one billion, one hundred thirty-one million, five hundred four thousand, three hundred fifty-four".