51345479 has 8 divisors (see below), whose sum is σ = 52550400. Its totient is φ = 50145336.

The previous prime is 51345473. The next prime is 51345487. The reversal of 51345479 is 97454315.

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

It is a cyclic number.

It is not a de Polignac number, because 51345479 - 2²⁴ = 34568263 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 (51345473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29372 + ... + 31070.

It is an arithmetic number, because the mean of its divisors is an integer number (6568800).

Almost surely, 2^51345479 is an apocalyptic number.

51345479 is a deficient number, since it is larger than the sum of its proper divisors (1204921).

51345479 is a wasteful number, since it uses less digits than its factorization.

51345479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2389.

The product of its digits is 75600, while the sum is 38.

The square root of 51345479 is about 7165.5759712671. The cubic root of 51345479 is about 371.6784687501.

The spelling of 51345479 in words is "fifty-one million, three hundred forty-five thousand, four hundred seventy-nine".