51204959 has 16 divisors (see below), whose sum is σ = 56918400. Its totient is φ = 45765216.

The previous prime is 51204953. The next prime is 51204961. The reversal of 51204959 is 95940215.

It is a cyclic number.

It is not a de Polignac number, because 51204959 - 2²⁰ = 50156383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51204953) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77372 + ... + 78030.

It is an arithmetic number, because the mean of its divisors is an integer number (3557400).

Almost surely, 2^51204959 is an apocalyptic number.

51204959 is a deficient number, since it is larger than the sum of its proper divisors (5713441).

51204959 is a wasteful number, since it uses less digits than its factorization.

51204959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854.

The product of its (nonzero) digits is 16200, while the sum is 35.

The square root of 51204959 is about 7155.7640402685. The cubic root of 51204959 is about 371.3390946557.

The spelling of 51204959 in words is "fifty-one million, two hundred four thousand, nine hundred fifty-nine".