51477613 has 8 divisors (see below), whose sum is σ = 56568960. Its totient is φ = 46454880.

The previous prime is 51477607. The next prime is 51477617. The reversal of 51477613 is 31677415.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51477613 - 2²⁵ = 17923181 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 (51477617) 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, 15573 + ... + 18586.

It is an arithmetic number, because the mean of its divisors is an integer number (7071120).

Almost surely, 2^51477613 is an apocalyptic number.

It is an amenable number.

51477613 is a deficient number, since it is larger than the sum of its proper divisors (5091347).

51477613 is a wasteful number, since it uses less digits than its factorization.

51477613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34307.

The product of its digits is 17640, while the sum is 34.

The square root of 51477613 is about 7174.7901014594. The cubic root of 51477613 is about 371.9970251622.

The spelling of 51477613 in words is "fifty-one million, four hundred seventy-seven thousand, six hundred thirteen".