2515564641 has 8 divisors (see below), whose sum is σ = 3530617120. Its totient is φ = 1588777632.

The previous prime is 2515564637. The next prime is 2515564663. The reversal of 2515564641 is 1464655152.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2515564641 - 2² = 2515564637 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2515564641.

It is not an unprimeable number, because it can be changed into a prime (2515564631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22066300 + ... + 22066413.

It is an arithmetic number, because the mean of its divisors is an integer number (441327140).

Almost surely, 2^2515564641 is an apocalyptic number.

It is an amenable number.

2515564641 is a deficient number, since it is larger than the sum of its proper divisors (1015052479).

2515564641 is a wasteful number, since it uses less digits than its factorization.

2515564641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44132735.

The product of its digits is 144000, while the sum is 39.

The square root of 2515564641 is about 50155.4049031607. The cubic root of 2515564641 is about 1360.0195789064.

The spelling of 2515564641 in words is "two billion, five hundred fifteen million, five hundred sixty-four thousand, six hundred forty-one".