2521948887405 has 48 divisors (see below), whose sum is σ = 4407887278080. Its totient is φ = 1333852531200.

The previous prime is 2521948887383. The next prime is 2521948887407. The reversal of 2521948887405 is 5047888491252.

2521948887405 is a `hidden beast` number, since 2 + 5 + 219 + 4 + 8 + 8 + 8 + 7 + 405 = 666.

It is not a de Polignac number, because 2521948887405 - 2⁹ = 2521948886893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2521948887407) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2105460 + ... + 3078450.

It is an arithmetic number, because the mean of its divisors is an integer number (91830984960).

Almost surely, 2^{2521948887405} is an apocalyptic number.

It is an amenable number.

2521948887405 is a deficient number, since it is larger than the sum of its proper divisors (1885938390675).

2521948887405 is a wasteful number, since it uses less digits than its factorization.

2521948887405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 973482 (or 973479 counting only the distinct ones).

The product of its (nonzero) digits is 51609600, while the sum is 63.

The spelling of 2521948887405 in words is "two trillion, five hundred twenty-one billion, nine hundred forty-eight million, eight hundred eighty-seven thousand, four hundred five".