51513118 has 8 divisors (see below), whose sum is σ = 77636520. Its totient is φ = 25634280.

The previous prime is 51513109. The next prime is 51513149. The reversal of 51513118 is 81131515.

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

It is a magnanimous number.

It is a junction number, because it is equal to n+sod(n) for n = 51513092 and 51513101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60613 + ... + 61456.

It is an arithmetic number, because the mean of its divisors is an integer number (9704565).

Almost surely, 2^51513118 is an apocalyptic number.

51513118 is a deficient number, since it is larger than the sum of its proper divisors (26123402).

51513118 is a wasteful number, since it uses less digits than its factorization.

51513118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122282.

The product of its digits is 600, while the sum is 25.

The square root of 51513118 is about 7177.2639633777. The cubic root of 51513118 is about 372.0825297678.

The spelling of 51513118 in words is "fifty-one million, five hundred thirteen thousand, one hundred eighteen".