51460979 has 2 divisors, whose sum is σ = 51460980. Its totient is φ = 51460978.

The previous prime is 51460973. The next prime is 51461017. The reversal of 51460979 is 97906415.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51460979 - 2²⁰ = 50412403 is a prime.

It is not a weakly prime, because it can be changed into another prime (51460973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25730489 + 25730490.

It is an arithmetic number, because the mean of its divisors is an integer number (25730490).

Almost surely, 2^51460979 is an apocalyptic number.

51460979 is a deficient number, since it is larger than the sum of its proper divisors (1).

51460979 is an equidigital number, since it uses as much as digits as its factorization.

51460979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 51460979 is about 7173.6308101268. The cubic root of 51460979 is about 371.9569529524.

The spelling of 51460979 in words is "fifty-one million, four hundred sixty thousand, nine hundred seventy-nine".