51113418 has 16 divisors (see below), whose sum is σ = 102311616. Its totient is φ = 17023680.

The previous prime is 51113417. The next prime is 51113431. The reversal of 51113418 is 81431115.

It is a super-2 number, since 2×51113418² = 5225162999285448, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51113417) 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, 6498 + ... + 12018.

It is an arithmetic number, because the mean of its divisors is an integer number (6394476).

Almost surely, 2^51113418 is an apocalyptic number.

51113418 is an abundant number, since it is smaller than the sum of its proper divisors (51198198).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51113418 is a wasteful number, since it uses less digits than its factorization.

51113418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7069.

The product of its digits is 480, while the sum is 24.

The square root of 51113418 is about 7149.3648668955. The cubic root of 51113418 is about 371.1176771109.

The spelling of 51113418 in words is "fifty-one million, one hundred thirteen thousand, four hundred eighteen".