25324111021 has 16 divisors (see below), whose sum is σ = 28838118528. Its totient is φ = 22032475200.

The previous prime is 25324110989. The next prime is 25324111049. The reversal of 25324111021 is 12011142352.

It is a cyclic number.

It is not a de Polignac number, because 25324111021 - 2⁵ = 25324110989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25324110983 and 25324111001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25324111321) 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, 485185 + ... + 534838.

It is an arithmetic number, because the mean of its divisors is an integer number (1802382408).

Almost surely, 2^25324111021 is an apocalyptic number.

It is an amenable number.

25324111021 is a deficient number, since it is larger than the sum of its proper divisors (3514007507).

25324111021 is a wasteful number, since it uses less digits than its factorization.

25324111021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020132.

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 25324111021 its reverse (12011142352), we get a palindrome (37335253373).

The spelling of 25324111021 in words is "twenty-five billion, three hundred twenty-four million, one hundred eleven thousand, twenty-one".