25141520961 has 16 divisors (see below), whose sum is σ = 38866120320. Its totient is φ = 16032273840.

The previous prime is 25141520939. The next prime is 25141520969. The reversal of 25141520961 is 16902514152.

25141520961 is a `hidden beast` number, since 2 + 5 + 1 + 41 + 520 + 96 + 1 = 666.

It is not a de Polignac number, because 25141520961 - 2³⁰ = 24067779137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25141520969) 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, 20242150 + ... + 20243391.

It is an arithmetic number, because the mean of its divisors is an integer number (2429132520).

Almost surely, 2^25141520961 is an apocalyptic number.

It is an amenable number.

25141520961 is a deficient number, since it is larger than the sum of its proper divisors (13724599359).

25141520961 is a wasteful number, since it uses less digits than its factorization.

25141520961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40485573 (or 40485567 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The spelling of 25141520961 in words is "twenty-five billion, one hundred forty-one million, five hundred twenty thousand, nine hundred sixty-one".