51937599936 has 56 divisors (see below), whose sum is σ = 139747386240. Its totient is φ = 17019096832.

The previous prime is 51937599911. The next prime is 51937599941. The reversal of 51937599936 is 63999573915.

It is a happy number.

It is a super-2 number, since 2×51937599936² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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, 2281116 + ... + 2303771.

It is an arithmetic number, because the mean of its divisors is an integer number (2495489040).

Almost surely, 2^51937599936 is an apocalyptic number.

It is an amenable number.

51937599936 is an abundant number, since it is smaller than the sum of its proper divisors (87809786304).

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

51937599936 is a wasteful number, since it uses less digits than its factorization.

51937599936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4584961 (or 4584951 counting only the distinct ones).

The product of its digits is 62001450, while the sum is 66.

The spelling of 51937599936 in words is "fifty-one billion, nine hundred thirty-seven million, five hundred ninety-nine thousand, nine hundred thirty-six".