513872425 has 12 divisors (see below), whose sum is σ = 695129616. Its totient is φ = 373725200.

The previous prime is 513872419. The next prime is 513872441. The reversal of 513872425 is 524278315.

It is not a de Polignac number, because 513872425 - 2¹⁵ = 513839657 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 934039 + ... + 934588.

It is an arithmetic number, because the mean of its divisors is an integer number (57927468).

Almost surely, 2^513872425 is an apocalyptic number.

513872425 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

513872425 is a deficient number, since it is larger than the sum of its proper divisors (181257191).

513872425 is a wasteful number, since it uses less digits than its factorization.

513872425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1868648 (or 1868643 counting only the distinct ones).

The product of its digits is 67200, while the sum is 37.

The square root of 513872425 is about 22668.7543768951. The cubic root of 513872425 is about 800.9740349428.

The spelling of 513872425 in words is "five hundred thirteen million, eight hundred seventy-two thousand, four hundred twenty-five".