2521372736 has 28 divisors (see below), whose sum is σ = 5125387260. Its totient is φ = 1229936640.

The previous prime is 2521372709. The next prime is 2521372753. The reversal of 2521372736 is 6372731252.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 211993600 + 2309379136 = 14560^2 + 48056^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2521372736.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 477821 + ... + 483068.

It is an arithmetic number, because the mean of its divisors is an integer number (183049545).

Almost surely, 2^2521372736 is an apocalyptic number.

It is an amenable number.

2521372736 is an abundant number, since it is smaller than the sum of its proper divisors (2604014524).

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

2521372736 is an equidigital number, since it uses as much as digits as its factorization.

2521372736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960942 (or 960932 counting only the distinct ones).

The product of its digits is 105840, while the sum is 38.

The square root of 2521372736 is about 50213.2725083717. The cubic root of 2521372736 is about 1361.0654741621.

The spelling of 2521372736 in words is "two billion, five hundred twenty-one million, three hundred seventy-two thousand, seven hundred thirty-six".