25034442231 has 4 divisors (see below), whose sum is σ = 33379256312. Its totient is φ = 16689628152.

The previous prime is 25034442203. The next prime is 25034442247. The reversal of 25034442231 is 13224443052.

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

It is not a de Polignac number, because 25034442231 - 2¹⁴ = 25034425847 is a prime.

It is a super-2 number, since 2×25034442231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25034442031) 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, 4172407036 + ... + 4172407041.

It is an arithmetic number, because the mean of its divisors is an integer number (8344814078).

Almost surely, 2^25034442231 is an apocalyptic number.

25034442231 is a deficient number, since it is larger than the sum of its proper divisors (8344814081).

25034442231 is an equidigital number, since it uses as much as digits as its factorization.

25034442231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8344814080.

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 25034442231 its reverse (13224443052), we get a palindrome (38258885283).

The spelling of 25034442231 in words is "twenty-five billion, thirty-four million, four hundred forty-two thousand, two hundred thirty-one".