509015493 has 24 divisors (see below), whose sum is σ = 844004928. Its totient is φ = 289576512.

The previous prime is 509015489. The next prime is 509015497. The reversal of 509015493 is 394510905.

It is an interprime number because it is at equal distance from previous prime (509015489) and next prime (509015497).

It is not a de Polignac number, because 509015493 - 2² = 509015489 is a prime.

It is a super-2 number, since 2×509015493² = 518193544228066098, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (509015497) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3496 + ... + 32097.

It is an arithmetic number, because the mean of its divisors is an integer number (35166872).

Almost surely, 2^509015493 is an apocalyptic number.

It is an amenable number.

509015493 is a deficient number, since it is larger than the sum of its proper divisors (334989435).

509015493 is a wasteful number, since it uses less digits than its factorization.

509015493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35833 (or 35830 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 36.

The square root of 509015493 is about 22561.3717003200. The cubic root of 509015493 is about 798.4425391331.

The spelling of 509015493 in words is "five hundred nine million, fifteen thousand, four hundred ninety-three".