513772245 has 24 divisors (see below), whose sum is σ = 1017758976. Its totient is φ = 234867168.

The previous prime is 513772211. The next prime is 513772261. The reversal of 513772245 is 542277315.

It is not a de Polignac number, because 513772245 - 2⁹ = 513771733 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 815197 + ... + 815826.

It is an arithmetic number, because the mean of its divisors is an integer number (42406624).

Almost surely, 2^513772245 is an apocalyptic number.

It is an amenable number.

513772245 is a deficient number, since it is larger than the sum of its proper divisors (503986731).

513772245 is a wasteful number, since it uses less digits than its factorization.

513772245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1631041 (or 1631038 counting only the distinct ones).

The product of its digits is 58800, while the sum is 36.

The square root of 513772245 is about 22666.5446197695. The cubic root of 513772245 is about 800.9219813007.

The spelling of 513772245 in words is "five hundred thirteen million, seven hundred seventy-two thousand, two hundred forty-five".