51925510938 has 64 divisors (see below), whose sum is σ = 119639520000. Its totient is φ = 14717044224.

The previous prime is 51925510927. The next prime is 51925510939. The reversal of 51925510938 is 83901552915.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51925510939) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5182878 + ... + 5192886.

It is an arithmetic number, because the mean of its divisors is an integer number (1869367500).

Almost surely, 2^51925510938 is an apocalyptic number.

51925510938 is an abundant number, since it is smaller than the sum of its proper divisors (67714009062).

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

51925510938 is a wasteful number, since it uses less digits than its factorization.

51925510938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10999.

The product of its (nonzero) digits is 486000, while the sum is 48.

The spelling of 51925510938 in words is "fifty-one billion, nine hundred twenty-five million, five hundred ten thousand, nine hundred thirty-eight".