513371225 has 6 divisors (see below), whose sum is σ = 636580350. Its totient is φ = 410696960.

The previous prime is 513371161. The next prime is 513371227. The reversal of 513371225 is 522173315.

It can be written as a sum of positive squares in 3 ways, for example, as 5139289 + 508231936 = 2267^2 + 22544^2 .

It is not a de Polignac number, because 513371225 - 2⁶ = 513371161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (513371227) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10267400 + ... + 10267449.

It is an arithmetic number, because the mean of its divisors is an integer number (106096725).

Almost surely, 2^513371225 is an apocalyptic number.

It is an amenable number.

513371225 is a deficient number, since it is larger than the sum of its proper divisors (123209125).

513371225 is a wasteful number, since it uses less digits than its factorization.

513371225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20534859 (or 20534854 counting only the distinct ones).

The product of its digits is 6300, while the sum is 29.

The square root of 513371225 is about 22657.6968158725. The cubic root of 513371225 is about 800.7135430686.

The spelling of 513371225 in words is "five hundred thirteen million, three hundred seventy-one thousand, two hundred twenty-five".