51775395572 has 24 divisors (see below), whose sum is σ = 93807844200. Its totient is φ = 24974612096.

The previous prime is 51775395571. The next prime is 51775395583. The reversal of 51775395572 is 27559357715.

51775395572 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 10973819536 + 40801576036 = 104756^2 + 201994^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51775395571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39023 + ... + 324150.

It is an arithmetic number, because the mean of its divisors is an integer number (3908660175).

Almost surely, 2^51775395572 is an apocalyptic number.

It is an amenable number.

51775395572 is a deficient number, since it is larger than the sum of its proper divisors (42032448628).

51775395572 is a wasteful number, since it uses less digits than its factorization.

51775395572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364435 (or 364433 counting only the distinct ones).

The product of its digits is 11576250, while the sum is 56.

The spelling of 51775395572 in words is "fifty-one billion, seven hundred seventy-five million, three hundred ninety-five thousand, five hundred seventy-two".