25452555401 has 32 divisors (see below), whose sum is σ = 32992162560. Its totient is φ = 19068431616.

The previous prime is 25452555391. The next prime is 25452555419. The reversal of 25452555401 is 10455525452.

It is a de Polignac number, because none of the positive numbers 2^k-25452555401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25452525401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6563075 + ... + 6566951.

It is an arithmetic number, because the mean of its divisors is an integer number (1031005080).

Almost surely, 2^25452555401 is an apocalyptic number.

It is an amenable number.

25452555401 is a deficient number, since it is larger than the sum of its proper divisors (7539607159).

25452555401 is a wasteful number, since it uses less digits than its factorization.

25452555401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7713.

The product of its (nonzero) digits is 200000, while the sum is 38.

The spelling of 25452555401 in words is "twenty-five billion, four hundred fifty-two million, five hundred fifty-five thousand, four hundred one".