51104615 has 4 divisors (see below), whose sum is σ = 61325544. Its totient is φ = 40883688.

The previous prime is 51104587. The next prime is 51104617. The reversal of 51104615 is 51640115.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51104615 - 2⁸ = 51104359 is a prime.

It is a super-2 number, since 2×51104615² = 5223363348596450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51104617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5110457 + ... + 5110466.

It is an arithmetic number, because the mean of its divisors is an integer number (15331386).

Almost surely, 2^51104615 is an apocalyptic number.

51104615 is a deficient number, since it is larger than the sum of its proper divisors (10220929).

51104615 is a wasteful number, since it uses less digits than its factorization.

51104615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10220928.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 51104615 is about 7148.7491912921. The cubic root of 51104615 is about 371.0963706607.

The spelling of 51104615 in words is "fifty-one million, one hundred four thousand, six hundred fifteen".