515512152 has 24 divisors (see below), whose sum is σ = 1396178940. Its totient is φ = 171837360.

The previous prime is 515512141. The next prime is 515512171. The reversal of 515512152 is 251215515.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×515512152² = 531505557719342208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3579874 + ... + 3580017.

Almost surely, 2^515512152 is an apocalyptic number.

It is an amenable number.

515512152 is an abundant number, since it is smaller than the sum of its proper divisors (880666788).

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

515512152 is a wasteful number, since it uses less digits than its factorization.

515512152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7159903 (or 7159896 counting only the distinct ones).

The product of its digits is 2500, while the sum is 27.

The square root of 515512152 is about 22704.8926885815. The cubic root of 515512152 is about 801.8250790253.

Adding to 515512152 its reverse (251215515), we get a palindrome (766727667).

The spelling of 515512152 in words is "five hundred fifteen million, five hundred twelve thousand, one hundred fifty-two".