51325365536 has 96 divisors (see below), whose sum is σ = 108967275648. Its totient is φ = 23737190400.

The previous prime is 51325365523. The next prime is 51325365557. The reversal of 51325365536 is 63556352315.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3188420 + ... + 3204476.

It is an arithmetic number, because the mean of its divisors is an integer number (1135075788).

Almost surely, 2^51325365536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51325365536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54483637824).

51325365536 is an abundant number, since it is smaller than the sum of its proper divisors (57641910112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51325365536 is a wasteful number, since it uses less digits than its factorization.

51325365536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16234 (or 16226 counting only the distinct ones).

The product of its digits is 1215000, while the sum is 44.

The spelling of 51325365536 in words is "fifty-one billion, three hundred twenty-five million, three hundred sixty-five thousand, five hundred thirty-six".