51572066561252 has 12 divisors (see below), whose sum is σ = 90251616695856. Its totient is φ = 25785890362440.

The previous prime is 51572066561251. The next prime is 51572066561311. The reversal of 51572066561252 is 25216566027515.

It is a junction number, because it is equal to n+sod(n) for n = 51572066561194 and 51572066561203.

It is not an unprimeable number, because it can be changed into a prime (51572066561251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34915574 + ... + 36362637.

It is an arithmetic number, because the mean of its divisors is an integer number (7520968057988).

Almost surely, 2^{51572066561252} is an apocalyptic number.

It is an amenable number.

51572066561252 is a deficient number, since it is larger than the sum of its proper divisors (38679550134604).

51572066561252 is a wasteful number, since it uses less digits than its factorization.

51572066561252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71459098 (or 71459096 counting only the distinct ones).

The product of its (nonzero) digits is 7560000, while the sum is 53.

The spelling of 51572066561252 in words is "fifty-one trillion, five hundred seventy-two billion, sixty-six million, five hundred sixty-one thousand, two hundred fifty-two".