51470979 has 8 divisors (see below), whose sum is σ = 78432000. Its totient is φ = 29411976.

The previous prime is 51470963. The next prime is 51470983. The reversal of 51470979 is 97907415.

It is a happy number.

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

It is not a de Polignac number, because 51470979 - 2⁴ = 51470963 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51470979.

It is not an unprimeable number, because it can be changed into a prime (51470929) 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, 1225479 + ... + 1225520.

It is an arithmetic number, because the mean of its divisors is an integer number (9804000).

Almost surely, 2^51470979 is an apocalyptic number.

51470979 is a deficient number, since it is larger than the sum of its proper divisors (26961021).

51470979 is a wasteful number, since it uses less digits than its factorization.

51470979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2451009.

The product of its (nonzero) digits is 79380, while the sum is 42.

The square root of 51470979 is about 7174.3277733876. The cubic root of 51470979 is about 371.9810445307.

The spelling of 51470979 in words is "fifty-one million, four hundred seventy thousand, nine hundred seventy-nine".