2521402844 has 6 divisors (see below), whose sum is σ = 4412454984. Its totient is φ = 1260701420.

The previous prime is 2521402837. The next prime is 2521402903. The reversal of 2521402844 is 4482041252.

2521402844 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2521402844.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315175352 + ... + 315175359.

It is an arithmetic number, because the mean of its divisors is an integer number (735409164).

Almost surely, 2^2521402844 is an apocalyptic number.

It is an amenable number.

2521402844 is a deficient number, since it is larger than the sum of its proper divisors (1891052140).

2521402844 is a wasteful number, since it uses less digits than its factorization.

2521402844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630350715 (or 630350713 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 32.

The square root of 2521402844 is about 50213.5723086896. The cubic root of 2521402844 is about 1361.0708916867.

The spelling of 2521402844 in words is "two billion, five hundred twenty-one million, four hundred two thousand, eight hundred forty-four".