2520657472 has 28 divisors (see below), whose sum is σ = 5086715760. Its totient is φ = 1238965376.

The previous prime is 2520657457. The next prime is 2520657479. The reversal of 2520657472 is 2747560252.

It is a super-2 number, since 2×2520657472² = 12707428182298861568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2520657479) 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, 329998 + ... + 337549.

It is an arithmetic number, because the mean of its divisors is an integer number (181668420).

Almost surely, 2^2520657472 is an apocalyptic number.

It is an amenable number.

2520657472 is an abundant number, since it is smaller than the sum of its proper divisors (2566058288).

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

2520657472 is an equidigital number, since it uses as much as digits as its factorization.

2520657472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667618 (or 667608 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 40.

The square root of 2520657472 is about 50206.1497428353. The cubic root of 2520657472 is about 1360.9367594621.

The spelling of 2520657472 in words is "two billion, five hundred twenty million, six hundred fifty-seven thousand, four hundred seventy-two".