515020152 has 16 divisors (see below), whose sum is σ = 1287550440. Its totient is φ = 171673376.

The previous prime is 515020111. The next prime is 515020189. The reversal of 515020152 is 251020515.

It is a super-2 number, since 2×515020152² = 530491513932206208, 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 3 ways as a sum of consecutive naturals, for example, 10729563 + ... + 10729610.

Almost surely, 2^515020152 is an apocalyptic number.

It is an amenable number.

515020152 is an abundant number, since it is smaller than the sum of its proper divisors (772530288).

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

515020152 is a wasteful number, since it uses less digits than its factorization.

515020152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21459182 (or 21459178 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 515020152 is about 22694.0554330864. The cubic root of 515020152 is about 801.5699130344.

Adding to 515020152 its reverse (251020515), we get a palindrome (766040667).

The spelling of 515020152 in words is "five hundred fifteen million, twenty thousand, one hundred fifty-two".