51605883 has 16 divisors (see below), whose sum is σ = 87375360. Its totient is φ = 29488968.

The previous prime is 51605833. The next prime is 51605909. The reversal of 51605883 is 38850615.

It is not a de Polignac number, because 51605883 - 2⁹ = 51605371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51605833) 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, 136335 + ... + 136712.

It is an arithmetic number, because the mean of its divisors is an integer number (5460960).

Almost surely, 2^51605883 is an apocalyptic number.

51605883 is a deficient number, since it is larger than the sum of its proper divisors (35769477).

51605883 is a wasteful number, since it uses less digits than its factorization.

51605883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273063 (or 273057 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 51605883 is about 7183.7234774175. The cubic root of 51605883 is about 372.3057449988.

The spelling of 51605883 in words is "fifty-one million, six hundred five thousand, eight hundred eighty-three".