51201157525 has 24 divisors (see below), whose sum is σ = 72817642944. Its totient is φ = 34984387200.

The previous prime is 51201157507. The next prime is 51201157547. The reversal of 51201157525 is 52575110215.

It is not a de Polignac number, because 51201157525 - 2¹³ = 51201149333 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 471427 + ... + 569776.

It is an arithmetic number, because the mean of its divisors is an integer number (3034068456).

Almost surely, 2^51201157525 is an apocalyptic number.

It is an amenable number.

51201157525 is a deficient number, since it is larger than the sum of its proper divisors (21616485419).

51201157525 is a wasteful number, since it uses less digits than its factorization.

51201157525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1041501 (or 1041496 counting only the distinct ones).

The product of its (nonzero) digits is 17500, while the sum is 34.

The spelling of 51201157525 in words is "fifty-one billion, two hundred one million, one hundred fifty-seven thousand, five hundred twenty-five".