51420502996 has 12 divisors (see below), whose sum is σ = 91218564052. Its totient is φ = 25358056128.

The previous prime is 51420502981. The next prime is 51420503011. The reversal of 51420502996 is 69920502415.

It is an interprime number because it is at equal distance from previous prime (51420502981) and next prime (51420503011).

It can be written as a sum of positive squares in 2 ways, for example, as 12698134596 + 38722368400 = 112686^2 + 196780^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88048515 + ... + 88049098.

Almost surely, 2^51420502996 is an apocalyptic number.

It is an amenable number.

51420502996 is a deficient number, since it is larger than the sum of its proper divisors (39798061056).

51420502996 is a wasteful number, since it uses less digits than its factorization.

51420502996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176097690 (or 176097688 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 43.

The spelling of 51420502996 in words is "fifty-one billion, four hundred twenty million, five hundred two thousand, nine hundred ninety-six".