513675261 has 48 divisors (see below), whose sum is σ = 848195712. Its totient is φ = 296524800.

The previous prime is 513675257. The next prime is 513675263. The reversal of 513675261 is 162576315.

It is not a de Polignac number, because 513675261 - 2² = 513675257 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513675263) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 985681 + ... + 986201.

It is an arithmetic number, because the mean of its divisors is an integer number (17670744).

Almost surely, 2^513675261 is an apocalyptic number.

It is an amenable number.

513675261 is a deficient number, since it is larger than the sum of its proper divisors (334520451).

513675261 is a wasteful number, since it uses less digits than its factorization.

513675261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994 (or 991 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The square root of 513675261 is about 22664.4051543384. The cubic root of 513675261 is about 800.8715818573.

The spelling of 513675261 in words is "five hundred thirteen million, six hundred seventy-five thousand, two hundred sixty-one".