513994652 has 12 divisors (see below), whose sum is σ = 920409336. Its totient is φ = 251020560.

The previous prime is 513994651. The next prime is 513994661. The reversal of 513994652 is 256499315.

It is a super-2 number, since 2×513994652² = 528381004569202208, which contains 22 as substring.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513994651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1493999 + ... + 1494342.

It is an arithmetic number, because the mean of its divisors is an integer number (76700778).

Almost surely, 2^513994652 is an apocalyptic number.

It is an amenable number.

513994652 is a deficient number, since it is larger than the sum of its proper divisors (406414684).

513994652 is a wasteful number, since it uses less digits than its factorization.

513994652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2988388 (or 2988386 counting only the distinct ones).

The product of its digits is 291600, while the sum is 44.

The square root of 513994652 is about 22671.4501521186. The cubic root of 513994652 is about 801.0375350695.

The spelling of 513994652 in words is "five hundred thirteen million, nine hundred ninety-four thousand, six hundred fifty-two".