25211579401 has 8 divisors (see below), whose sum is σ = 25830273024. Its totient is φ = 24596314080.

The previous prime is 25211579339. The next prime is 25211579417. The reversal of 25211579401 is 10497511252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25211579401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25211579201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 842185 + ... + 871606.

It is an arithmetic number, because the mean of its divisors is an integer number (3228784128).

Almost surely, 2^25211579401 is an apocalyptic number.

It is an amenable number.

25211579401 is a deficient number, since it is larger than the sum of its proper divisors (618693623).

25211579401 is a wasteful number, since it uses less digits than its factorization.

25211579401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1714151.

The product of its (nonzero) digits is 25200, while the sum is 37.

The spelling of 25211579401 in words is "twenty-five billion, two hundred eleven million, five hundred seventy-nine thousand, four hundred one".