2521919396 has 24 divisors (see below), whose sum is σ = 4498085760. Its totient is φ = 1236910752.

The previous prime is 2521919377. The next prime is 2521919441. The reversal of 2521919396 is 6939191252.

2521919396 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 2521919396.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44366 + ... + 83738.

It is an arithmetic number, because the mean of its divisors is an integer number (187420240).

Almost surely, 2^2521919396 is an apocalyptic number.

It is an amenable number.

2521919396 is a deficient number, since it is larger than the sum of its proper divisors (1976166364).

2521919396 is a wasteful number, since it uses less digits than its factorization.

2521919396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39683 (or 39681 counting only the distinct ones).

The product of its digits is 262440, while the sum is 47.

The square root of 2521919396 is about 50218.7155948855. The cubic root of 2521919396 is about 1361.1638314678.

The spelling of 2521919396 in words is "two billion, five hundred twenty-one million, nine hundred nineteen thousand, three hundred ninety-six".