25113511231 has 8 divisors (see below), whose sum is σ = 26480321280. Its totient is φ = 23751205848.

The previous prime is 25113511229. The next prime is 25113511243. The reversal of 25113511231 is 13211531152.

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

It is a cyclic number.

It is not a de Polignac number, because 25113511231 - 2¹ = 25113511229 is a prime.

It is a super-2 number, since 2×25113511231² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25113511196 and 25113511205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25113511271) 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, 1114711 + ... + 1137016.

It is an arithmetic number, because the mean of its divisors is an integer number (3310040160).

Almost surely, 2^25113511231 is an apocalyptic number.

25113511231 is a deficient number, since it is larger than the sum of its proper divisors (1366810049).

25113511231 is a wasteful number, since it uses less digits than its factorization.

25113511231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2252333.

The product of its digits is 900, while the sum is 25.

The spelling of 25113511231 in words is "twenty-five billion, one hundred thirteen million, five hundred eleven thousand, two hundred thirty-one".