25130055566434 has 24 divisors (see below), whose sum is σ = 47222412110748. Its totient is φ = 9941560443360.

The previous prime is 25130055566423. The next prime is 25130055566489. The reversal of 25130055566434 is 43466555003152.

It can be written as a sum of positive squares in 2 ways, for example, as 25088928943225 + 41126623209 = 5008885^2 + 202797^2 .

It is a Harshad number since it is a multiple of its sum of digits (49).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9862657897 + ... + 9862660444.

Almost surely, 2^{25130055566434} is an apocalyptic number.

25130055566434 is a deficient number, since it is larger than the sum of its proper divisors (22092356544314).

25130055566434 is a wasteful number, since it uses less digits than its factorization.

25130055566434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19725318370 (or 19725318363 counting only the distinct ones).

The product of its (nonzero) digits is 6480000, while the sum is 49.

The spelling of 25130055566434 in words is "twenty-five trillion, one hundred thirty billion, fifty-five million, five hundred sixty-six thousand, four hundred thirty-four".