25631625250541 has 32 divisors (see below), whose sum is σ = 26737156662528. Its totient is φ = 24549202137600.

The previous prime is 25631625250529. The next prime is 25631625250547. The reversal of 25631625250541 is 14505252613652.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25631625250541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25631625250547) 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, 4040927816 + ... + 4040934158.

It is an arithmetic number, because the mean of its divisors is an integer number (835536145704).

Almost surely, 2^{25631625250541} is an apocalyptic number.

It is an amenable number.

25631625250541 is a deficient number, since it is larger than the sum of its proper divisors (1105531411987).

25631625250541 is a wasteful number, since it uses less digits than its factorization.

25631625250541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9141.

The product of its (nonzero) digits is 2160000, while the sum is 47.

The spelling of 25631625250541 in words is "twenty-five trillion, six hundred thirty-one billion, six hundred twenty-five million, two hundred fifty thousand, five hundred forty-one".