51932071244881 has 3 divisors (see below), whose sum is σ = 51932078451273. Its totient is φ = 51932064038490.

The previous prime is 51932071244873. The next prime is 51932071244899. The reversal of 51932071244881 is 18844217023915.

The square root of 51932071244881 is 7206391.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 51932071244881 - 2³ = 51932071244873 is a prime.

It is a super-2 number, since 2×51932071244881² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51932071244821) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3603196 + ... + 10809586.

It is an arithmetic number, because the mean of its divisors is an integer number (17310692817091).

Almost surely, 2^{51932071244881} is an apocalyptic number.

51932071244881 is the 7206391-st square number.

51932071244881 is the 3603196-th centered octagonal number.

It is an amenable number.

51932071244881 is a deficient number, since it is larger than the sum of its proper divisors (7206392).

51932071244881 is an frugal number, since it uses more digits than its factorization.

51932071244881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14412782 (or 7206391 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 55.

The spelling of 51932071244881 in words is "fifty-one trillion, nine hundred thirty-two billion, seventy-one million, two hundred forty-four thousand, eight hundred eighty-one".