513738855 has 40 divisors (see below), whose sum is σ = 1052490912. Its totient is φ = 234850752.

The previous prime is 513738847. The next prime is 513738893. The reversal of 513738855 is 558837315.

513738855 is a `hidden beast` number, since 513 + 7 + 3 + 88 + 55 = 666.

It is not a de Polignac number, because 513738855 - 2³ = 513738847 is a prime.

It is a super-2 number, since 2×513738855² = 527855222273422050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 513738855.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 87772 + ... + 93441.

Almost surely, 2^513738855 is an apocalyptic number.

513738855 is an abundant number, since it is smaller than the sum of its proper divisors (538752057).

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

513738855 is a wasteful number, since it uses less digits than its factorization.

513738855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181237 (or 181228 counting only the distinct ones).

The product of its digits is 504000, while the sum is 45.

The square root of 513738855 is about 22665.8080597185. The cubic root of 513738855 is about 800.9046303152.

The spelling of 513738855 in words is "five hundred thirteen million, seven hundred thirty-eight thousand, eight hundred fifty-five".