253879132065 has 48 divisors (see below), whose sum is σ = 441569501568. Its totient is φ = 124500000768.

The previous prime is 253879132063. The next prime is 253879132069. The reversal of 253879132065 is 560231978352.

It is not a de Polignac number, because 253879132065 - 2¹ = 253879132063 is a prime.

It is a super-2 number, since 2×253879132065² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 253879131999 and 253879132017.

It is not an unprimeable number, because it can be changed into a prime (253879132063) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 456652 + ... + 846338.

It is an arithmetic number, because the mean of its divisors is an integer number (9199364616).

Almost surely, 2^253879132065 is an apocalyptic number.

It is an amenable number.

253879132065 is a deficient number, since it is larger than the sum of its proper divisors (187690369503).

253879132065 is a wasteful number, since it uses less digits than its factorization.

253879132065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389978 (or 389965 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 51.

The spelling of 253879132065 in words is "two hundred fifty-three billion, eight hundred seventy-nine million, one hundred thirty-two thousand, sixty-five".