515531153052 has 18 divisors (see below), whose sum is σ = 1303148192528. Its totient is φ = 171843717672.

The previous prime is 515531153051. The next prime is 515531153063. The reversal of 515531153052 is 250351135515.

515531153052 is a `hidden beast` number, since 5 + 1 + 553 + 1 + 1 + 53 + 0 + 52 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 14320309807 = 515531153052 / (5 + 1 + 5 + 5 + 3 + 1 + 1 + 5 + 3 + 0 + 5 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 515531152998 and 515531153016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515531153051) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7160154868 + ... + 7160154939.

Almost surely, 2^515531153052 is an apocalyptic number.

It is an amenable number.

515531153052 is an abundant number, since it is smaller than the sum of its proper divisors (787617039476).

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

515531153052 is a wasteful number, since it uses less digits than its factorization.

515531153052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14320309817 (or 14320309812 counting only the distinct ones).

The product of its (nonzero) digits is 56250, while the sum is 36.

Adding to 515531153052 its reverse (250351135515), we get a palindrome (765882288567).

The spelling of 515531153052 in words is "five hundred fifteen billion, five hundred thirty-one million, one hundred fifty-three thousand, fifty-two".