25033112013 has 24 divisors (see below), whose sum is σ = 41813552928. Its totient is φ = 13204277856.

The previous prime is 25033111993. The next prime is 25033112029. The reversal of 25033112013 is 31021133052.

It is not a de Polignac number, because 25033112013 - 2⁵ = 25033111981 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25033112413) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6547831 + ... + 6551652.

It is an arithmetic number, because the mean of its divisors is an integer number (1742231372).

Almost surely, 2^25033112013 is an apocalyptic number.

It is an amenable number.

25033112013 is a deficient number, since it is larger than the sum of its proper divisors (16780440915).

25033112013 is a wasteful number, since it uses less digits than its factorization.

25033112013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13099513 (or 13099506 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

Adding to 25033112013 its reverse (31021133052), we get a palindrome (56054245065).

The spelling of 25033112013 in words is "twenty-five billion, thirty-three million, one hundred twelve thousand, thirteen".