51696207424 has 63 divisors (see below), whose sum is σ = 104008110627. Its totient is φ = 25494319104.

The previous prime is 51696207403. The next prime is 51696207427. The reversal of 51696207424 is 42470269615.

The square root of 51696207424 is 227368.

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

It can be written as a sum of positive squares in 4 ways, for example, as 11887977024 + 39808230400 = 109032^2 + 199520^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51696207427) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 176437422 + ... + 176437714.

Almost surely, 2^51696207424 is an apocalyptic number.

51696207424 is the 227368-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51696207424

51696207424 is an abundant number, since it is smaller than the sum of its proper divisors (52311903203).

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

51696207424 is an frugal number, since it uses more digits than its factorization.

51696207424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792 (or 392 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 46.

The spelling of 51696207424 in words is "fifty-one billion, six hundred ninety-six million, two hundred seven thousand, four hundred twenty-four".