2520315516 has 12 divisors (see below), whose sum is σ = 5880736232. Its totient is φ = 840105168.

The previous prime is 2520315509. The next prime is 2520315517. The reversal of 2520315516 is 6155130252.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2520315517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105013135 + ... + 105013158.

Almost surely, 2^2520315516 is an apocalyptic number.

It is an amenable number.

2520315516 is an abundant number, since it is smaller than the sum of its proper divisors (3360420716).

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

2520315516 is a wasteful number, since it uses less digits than its factorization.

2520315516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210026300 (or 210026298 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 2520315516 is about 50202.7441082656. The cubic root of 2520315516 is about 1360.8752144695.

Adding to 2520315516 its reverse (6155130252), we get a palindrome (8675445768).

The spelling of 2520315516 in words is "two billion, five hundred twenty million, three hundred fifteen thousand, five hundred sixteen".