25485986401 has 16 divisors (see below), whose sum is σ = 25867072000. Its totient is φ = 25108066368.

The previous prime is 25485986381. The next prime is 25485986411. The reversal of 25485986401 is 10468958452.

It is a cyclic number.

It is not a de Polignac number, because 25485986401 - 2⁵ = 25485986369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25485986411) 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, 17612260 + ... + 17613706.

It is an arithmetic number, because the mean of its divisors is an integer number (1616692000).

Almost surely, 2^25485986401 is an apocalyptic number.

It is an amenable number.

25485986401 is a deficient number, since it is larger than the sum of its proper divisors (381085599).

25485986401 is a wasteful number, since it uses less digits than its factorization.

25485986401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2368.

The product of its (nonzero) digits is 2764800, while the sum is 52.

The spelling of 25485986401 in words is "twenty-five billion, four hundred eighty-five million, nine hundred eighty-six thousand, four hundred one".