52631579479 has 4 divisors (see below), whose sum is σ = 54446461560. Its totient is φ = 50816697400.

The previous prime is 52631579461. The next prime is 52631579549. The reversal of 52631579479 is 97497513625.

It is a happy number.

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-52631579479 is a prime.

It is a super-2 number, since 2×52631579479² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52631979479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 907440997 + ... + 907441054.

It is an arithmetic number, because the mean of its divisors is an integer number (13611615390).

Almost surely, 2^52631579479 is an apocalyptic number.

52631579479 is a deficient number, since it is larger than the sum of its proper divisors (1814882081).

52631579479 is a wasteful number, since it uses less digits than its factorization.

52631579479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1814882080.

The product of its digits is 14288400, while the sum is 58.

The spelling of 52631579479 in words is "fifty-two billion, six hundred thirty-one million, five hundred seventy-nine thousand, four hundred seventy-nine".