51913113 has 8 divisors (see below), whose sum is σ = 79105728. Its totient is φ = 29664624.

The previous prime is 51913079. The next prime is 51913117. The reversal of 51913113 is 31131915.

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

It is not a de Polignac number, because 51913113 - 2⁶ = 51913049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51913117) 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, 1236006 + ... + 1236047.

It is an arithmetic number, because the mean of its divisors is an integer number (9888216).

Almost surely, 2^51913113 is an apocalyptic number.

It is an amenable number.

51913113 is a deficient number, since it is larger than the sum of its proper divisors (27192615).

51913113 is a wasteful number, since it uses less digits than its factorization.

51913113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2472063.

The product of its digits is 405, while the sum is 24.

The square root of 51913113 is about 7205.0755027272. The cubic root of 51913113 is about 373.0431108784.

The spelling of 51913113 in words is "fifty-one million, nine hundred thirteen thousand, one hundred thirteen".