25455504401 has 16 divisors (see below), whose sum is σ = 26507730816. Its totient is φ = 24425520000.

The previous prime is 25455504329. The next prime is 25455504407. The reversal of 25455504401 is 10440555452.

It is a cyclic number.

It is not a de Polignac number, because 25455504401 - 2²² = 25451310097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25455504407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1215146 + ... + 1235916.

It is an arithmetic number, because the mean of its divisors is an integer number (1656733176).

Almost surely, 2^25455504401 is an apocalyptic number.

It is an amenable number.

25455504401 is a deficient number, since it is larger than the sum of its proper divisors (1052226415).

25455504401 is a wasteful number, since it uses less digits than its factorization.

25455504401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21304.

The product of its (nonzero) digits is 80000, while the sum is 35.

The spelling of 25455504401 in words is "twenty-five billion, four hundred fifty-five million, five hundred four thousand, four hundred one".