25224013011 has 4 divisors (see below), whose sum is σ = 33632017352. Its totient is φ = 16816008672.

The previous prime is 25224012959. The next prime is 25224013021. The reversal of 25224013011 is 11031042252.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 25224013011 - 2²³ = 25215624403 is a prime.

It is a super-2 number, since 2×25224013011² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25224013021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4204002166 + ... + 4204002171.

It is an arithmetic number, because the mean of its divisors is an integer number (8408004338).

Almost surely, 2^25224013011 is an apocalyptic number.

25224013011 is a deficient number, since it is larger than the sum of its proper divisors (8408004341).

25224013011 is an equidigital number, since it uses as much as digits as its factorization.

25224013011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8408004340.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 25224013011 its reverse (11031042252), we get a palindrome (36255055263).

The spelling of 25224013011 in words is "twenty-five billion, two hundred twenty-four million, thirteen thousand, eleven".