25414431023 has 4 divisors (see below), whose sum is σ = 25414886280. Its totient is φ = 25413975768.

The previous prime is 25414431019. The next prime is 25414431079. The reversal of 25414431023 is 32013441452.

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

It is a cyclic number.

It is not a de Polignac number, because 25414431023 - 2² = 25414431019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25414436023) 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, 129908 + ... + 260201.

It is an arithmetic number, because the mean of its divisors is an integer number (6353721570).

Almost surely, 2^25414431023 is an apocalyptic number.

25414431023 is a deficient number, since it is larger than the sum of its proper divisors (455257).

25414431023 is an equidigital number, since it uses as much as digits as its factorization.

25414431023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455256.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 25414431023 its reverse (32013441452), we get a palindrome (57427872475).

The spelling of 25414431023 in words is "twenty-five billion, four hundred fourteen million, four hundred thirty-one thousand, twenty-three".