512252913 has 4 divisors (see below), whose sum is σ = 683003888. Its totient is φ = 341501940.

The previous prime is 512252903. The next prime is 512252921. The reversal of 512252913 is 319252215.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 512252913 - 2²⁵ = 478698481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (512252903) 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, 85375483 + ... + 85375488.

It is an arithmetic number, because the mean of its divisors is an integer number (170750972).

Almost surely, 2^512252913 is an apocalyptic number.

It is an amenable number.

512252913 is a deficient number, since it is larger than the sum of its proper divisors (170750975).

512252913 is a wasteful number, since it uses less digits than its factorization.

512252913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170750974.

The product of its digits is 5400, while the sum is 30.

The square root of 512252913 is about 22633.0049485259. The cubic root of 512252913 is about 800.1317038373.

The spelling of 512252913 in words is "five hundred twelve million, two hundred fifty-two thousand, nine hundred thirteen".