25920995901 has 8 divisors (see below), whose sum is σ = 34573310784. Its totient is φ = 17274672480.

The previous prime is 25920995869. The next prime is 25920995911. The reversal of 25920995901 is 10959902952.

It is a happy number.

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

It is not a de Polignac number, because 25920995901 - 2⁵ = 25920995869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25920995911) 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, 1487760 + ... + 1505081.

It is an arithmetic number, because the mean of its divisors is an integer number (4321663848).

Almost surely, 2^25920995901 is an apocalyptic number.

It is an amenable number.

25920995901 is a deficient number, since it is larger than the sum of its proper divisors (8652314883).

25920995901 is a wasteful number, since it uses less digits than its factorization.

25920995901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2995731.

The product of its (nonzero) digits is 656100, while the sum is 51.

The spelling of 25920995901 in words is "twenty-five billion, nine hundred twenty million, nine hundred ninety-five thousand, nine hundred one".