2515564464 has 80 divisors (see below), whose sum is σ = 7749837312. Its totient is φ = 687481344.

The previous prime is 2515564459. The next prime is 2515564483. The reversal of 2515564464 is 4644655152.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155029 + ... + 170484.

Almost surely, 2^2515564464 is an apocalyptic number.

2515564464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2515564464 is an abundant number, since it is smaller than the sum of its proper divisors (5234272848).

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

2515564464 is a wasteful number, since it uses less digits than its factorization.

2515564464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325554 (or 325548 counting only the distinct ones).

The product of its digits is 576000, while the sum is 42.

The square root of 2515564464 is about 50155.4031386450. The cubic root of 2515564464 is about 1360.0195470086.

The spelling of 2515564464 in words is "two billion, five hundred fifteen million, five hundred sixty-four thousand, four hundred sixty-four".