51104534251 has 16 divisors (see below), whose sum is σ = 55700791200. Its totient is φ = 46702027008.

The previous prime is 51104534227. The next prime is 51104534291. The reversal of 51104534251 is 15243540115.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51104534251 is a prime.

It is a super-2 number, since 2×51104534251² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51104534291) 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, 559815 + ... + 644671.

It is an arithmetic number, because the mean of its divisors is an integer number (3481299450).

Almost surely, 2^51104534251 is an apocalyptic number.

51104534251 is a deficient number, since it is larger than the sum of its proper divisors (4596256949).

51104534251 is a wasteful number, since it uses less digits than its factorization.

51104534251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85998.

The product of its (nonzero) digits is 12000, while the sum is 31.

The spelling of 51104534251 in words is "fifty-one billion, one hundred four million, five hundred thirty-four thousand, two hundred fifty-one".