51413795501 has 4 divisors (see below), whose sum is σ = 51414277500. Its totient is φ = 51413313504.

The previous prime is 51413795483. The next prime is 51413795549. The reversal of 51413795501 is 10559731415.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 49672819876 + 1740975625 = 222874^2 + 41725^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51413795501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51413795101) 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, 1976 + ... + 320673.

It is an arithmetic number, because the mean of its divisors is an integer number (12853569375).

Almost surely, 2^51413795501 is an apocalyptic number.

It is an amenable number.

51413795501 is a deficient number, since it is larger than the sum of its proper divisors (481999).

51413795501 is a wasteful number, since it uses less digits than its factorization.

51413795501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481998.

The product of its (nonzero) digits is 94500, while the sum is 41.

The spelling of 51413795501 in words is "fifty-one billion, four hundred thirteen million, seven hundred ninety-five thousand, five hundred one".