51233965 has 8 divisors (see below), whose sum is σ = 61773408. Its totient is φ = 40792080.

The previous prime is 51233957. The next prime is 51233977. The reversal of 51233965 is 56933215.

It is a happy number.

51233965 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 51233965 - 2³ = 51233957 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51233965.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23227 + ... + 25336.

It is an arithmetic number, because the mean of its divisors is an integer number (7721676).

Almost surely, 2^51233965 is an apocalyptic number.

It is an amenable number.

51233965 is a deficient number, since it is larger than the sum of its proper divisors (10539443).

51233965 is a wasteful number, since it uses less digits than its factorization.

51233965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48779.

The product of its digits is 24300, while the sum is 34.

The square root of 51233965 is about 7157.7905110446. The cubic root of 51233965 is about 371.4091987290.

The spelling of 51233965 in words is "fifty-one million, two hundred thirty-three thousand, nine hundred sixty-five".