2521104399 has 32 divisors (see below), whose sum is σ = 4116564480. Its totient is φ = 1512172800.

The previous prime is 2521104379. The next prime is 2521104401. The reversal of 2521104399 is 9934011252.

2521104399 is a `hidden beast` number, since 2 + 5 + 211 + 0 + 439 + 9 = 666.

It is not a de Polignac number, because 2521104399 - 2⁵ = 2521104367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2521104349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14947 + ... + 72564.

It is an arithmetic number, because the mean of its divisors is an integer number (128642640).

Almost surely, 2^2521104399 is an apocalyptic number.

2521104399 is a deficient number, since it is larger than the sum of its proper divisors (1595460081).

2521104399 is a wasteful number, since it uses less digits than its factorization.

2521104399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87628 (or 87622 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 2521104399 is about 50210.6004644438. The cubic root of 2521104399 is about 1361.0171886683.

The spelling of 2521104399 in words is "two billion, five hundred twenty-one million, one hundred four thousand, three hundred ninety-nine".