25631201253 has 16 divisors (see below), whose sum is σ = 40112666240. Its totient is φ = 14250551616.

The previous prime is 25631201243. The next prime is 25631201273. The reversal of 25631201253 is 35210213652.

It is not a de Polignac number, because 25631201253 - 2⁴ = 25631201237 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25631201253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25631201203) 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, 16492918 + ... + 16494471.

It is an arithmetic number, because the mean of its divisors is an integer number (2507041640).

Almost surely, 2^25631201253 is an apocalyptic number.

It is an amenable number.

25631201253 is a deficient number, since it is larger than the sum of its proper divisors (14481464987).

25631201253 is a wasteful number, since it uses less digits than its factorization.

25631201253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32987436.

The product of its (nonzero) digits is 10800, while the sum is 30.

The spelling of 25631201253 in words is "twenty-five billion, six hundred thirty-one million, two hundred one thousand, two hundred fifty-three".