51013125901 has 16 divisors (see below), whose sum is σ = 52346511360. Its totient is φ = 49698941040.

The previous prime is 51013125893. The next prime is 51013125959. The reversal of 51013125901 is 10952131015.

51013125901 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 51013125901 - 2³ = 51013125893 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51013125901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51013125991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3495646 + ... + 3510208.

It is an arithmetic number, because the mean of its divisors is an integer number (3271656960).

Almost surely, 2^51013125901 is an apocalyptic number.

It is an amenable number.

51013125901 is a deficient number, since it is larger than the sum of its proper divisors (1333385459).

51013125901 is a wasteful number, since it uses less digits than its factorization.

51013125901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15216.

The product of its (nonzero) digits is 1350, while the sum is 28.

Adding to 51013125901 its reverse (10952131015), we get a palindrome (61965256916).

The spelling of 51013125901 in words is "fifty-one billion, thirteen million, one hundred twenty-five thousand, nine hundred one".