51571597360 has 40 divisors (see below), whose sum is σ = 121068099360. Its totient is φ = 20428357632.

The previous prime is 51571597351. The next prime is 51571597367. The reversal of 51571597360 is 6379517515.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (51571597367) 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, 3121105 + ... + 3137584.

It is an arithmetic number, because the mean of its divisors is an integer number (3026702484).

Almost surely, 2^51571597360 is an apocalyptic number.

It is an amenable number.

51571597360 is an abundant number, since it is smaller than the sum of its proper divisors (69496502000).

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

51571597360 is a wasteful number, since it uses less digits than its factorization.

51571597360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6258805 (or 6258799 counting only the distinct ones).

The product of its (nonzero) digits is 992250, while the sum is 49.

The spelling of 51571597360 in words is "fifty-one billion, five hundred seventy-one million, five hundred ninety-seven thousand, three hundred sixty".