513030253608 has 64 divisors (see below), whose sum is σ = 1441096272000. Its totient is φ = 169088616576.

The previous prime is 513030253607. The next prime is 513030253609. The reversal of 513030253608 is 806352030315.

513030253608 is a `hidden beast` number, since 5 + 13 + 0 + 30 + 2 + 5 + 3 + 608 = 666.

It is an interprime number because it is at equal distance from previous prime (513030253607) and next prime (513030253609).

It is a super-2 number, since 2×513030253608² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (513030253607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13324260 + ... + 13362707.

It is an arithmetic number, because the mean of its divisors is an integer number (22517129250).

Almost surely, 2^513030253608 is an apocalyptic number.

It is an amenable number.

513030253608 is an abundant number, since it is smaller than the sum of its proper divisors (928066018392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

513030253608 is a wasteful number, since it uses less digits than its factorization.

513030253608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26687071 (or 26687061 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The spelling of 513030253608 in words is "five hundred thirteen billion, thirty million, two hundred fifty-three thousand, six hundred eight".