2520215564 has 12 divisors (see below), whose sum is σ = 4411045800. Its totient is φ = 1259916768.

The previous prime is 2520215531. The next prime is 2520215567. The reversal of 2520215564 is 4655120252.

It is a self number, because there is not a number n which added to its sum of digits gives 2520215564.

It is not an unprimeable number, because it can be changed into a prime (2520215567) 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, 15674 + ... + 72705.

It is an arithmetic number, because the mean of its divisors is an integer number (367587150).

Almost surely, 2^2520215564 is an apocalyptic number.

It is an amenable number.

2520215564 is a deficient number, since it is larger than the sum of its proper divisors (1890830236).

2520215564 is a wasteful number, since it uses less digits than its factorization.

2520215564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95512 (or 95510 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 2520215564 is about 50201.7486149636. The cubic root of 2520215564 is about 1360.8572241296.

The spelling of 2520215564 in words is "two billion, five hundred twenty million, two hundred fifteen thousand, five hundred sixty-four".