2497520664 has 48 divisors (see below), whose sum is σ = 7120128600. Its totient is φ = 788690304.

The previous prime is 2497520653. The next prime is 2497520671. The reversal of 2497520664 is 4660257942.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 911469 + ... + 914204.

Almost surely, 2^2497520664 is an apocalyptic number.

2497520664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2497520664 is an abundant number, since it is smaller than the sum of its proper divisors (4622607936).

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

2497520664 is a wasteful number, since it uses less digits than its factorization.

2497520664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1825704 (or 1825697 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The square root of 2497520664 is about 49975.2004898430. The cubic root of 2497520664 is about 1356.7599963429.

The spelling of 2497520664 in words is "two billion, four hundred ninety-seven million, five hundred twenty thousand, six hundred sixty-four".