51137115 has 8 divisors (see below), whose sum is σ = 81819408. Its totient is φ = 27273120.

The previous prime is 51137069. The next prime is 51137117. The reversal of 51137115 is 51173115.

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

It is not a de Polignac number, because 51137115 - 2⁸ = 51136859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51137117) 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, 1704556 + ... + 1704585.

It is an arithmetic number, because the mean of its divisors is an integer number (10227426).

Almost surely, 2^51137115 is an apocalyptic number.

51137115 is a deficient number, since it is larger than the sum of its proper divisors (30682293).

51137115 is a wasteful number, since it uses less digits than its factorization.

51137115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3409149.

The product of its digits is 525, while the sum is 24.

The square root of 51137115 is about 7151.0219549376. The cubic root of 51137115 is about 371.1750202849.

The spelling of 51137115 in words is "fifty-one million, one hundred thirty-seven thousand, one hundred fifteen".