2499566652 has 72 divisors (see below), whose sum is σ = 6957280512. Its totient is φ = 750352800.

The previous prime is 2499566639. The next prime is 2499566669. The reversal of 2499566652 is 2566659942.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 12877 + ... + 71867.

It is an arithmetic number, because the mean of its divisors is an integer number (96628896).

Almost surely, 2^2499566652 is an apocalyptic number.

2499566652 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2499566652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3478640256).

2499566652 is an abundant number, since it is smaller than the sum of its proper divisors (4457713860).

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

2499566652 is a wasteful number, since it uses less digits than its factorization.

2499566652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59119 (or 59114 counting only the distinct ones).

The product of its digits is 6998400, while the sum is 54.

The square root of 2499566652 is about 49995.6663321932. Note that the first 3 decimals coincide. The cubic root of 2499566652 is about 1357.1303846030.

The spelling of 2499566652 in words is "two billion, four hundred ninety-nine million, five hundred sixty-six thousand, six hundred fifty-two".