51479023 has 4 divisors (see below), whose sum is σ = 51538600. Its totient is φ = 51419448.

The previous prime is 51479017. The next prime is 51479033. The reversal of 51479023 is 32097415.

51479023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51479023 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 (51479033) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 28473 + ... + 30226.

It is an arithmetic number, because the mean of its divisors is an integer number (12884650).

Almost surely, 2^51479023 is an apocalyptic number.

51479023 is a deficient number, since it is larger than the sum of its proper divisors (59577).

51479023 is an equidigital number, since it uses as much as digits as its factorization.

51479023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59576.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 51479023 is about 7174.8883615008. Note that the first 3 decimals coincide. The cubic root of 51479023 is about 372.0004215319. Note that the first 3 decimals are identical.

The spelling of 51479023 in words is "fifty-one million, four hundred seventy-nine thousand, twenty-three".