513225274 has 24 divisors (see below), whose sum is σ = 844195968. Its totient is φ = 233718720.

The previous prime is 513225263. The next prime is 513225313. The reversal of 513225274 is 472522315.

It is a Harshad number since it is a multiple of its sum of digits (31).

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, 3597 + ... + 32239.

It is an arithmetic number, because the mean of its divisors is an integer number (35174832).

Almost surely, 2^513225274 is an apocalyptic number.

513225274 is a deficient number, since it is larger than the sum of its proper divisors (330970694).

513225274 is a wasteful number, since it uses less digits than its factorization.

513225274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28710 (or 28693 counting only the distinct ones).

The product of its digits is 16800, while the sum is 31.

The square root of 513225274 is about 22654.4758050148. The cubic root of 513225274 is about 800.6376551515.

Adding to 513225274 its reverse (472522315), we get a palindrome (985747589).

The spelling of 513225274 in words is "five hundred thirteen million, two hundred twenty-five thousand, two hundred seventy-four".