25132515423 has 4 divisors (see below), whose sum is σ = 33510020568. Its totient is φ = 16755010280.

The previous prime is 25132515377. The next prime is 25132515431. The reversal of 25132515423 is 32451523152.

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 25132515423 - 2²⁸ = 24864079967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25132515493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4188752568 + ... + 4188752573.

It is an arithmetic number, because the mean of its divisors is an integer number (8377505142).

Almost surely, 2^25132515423 is an apocalyptic number.

25132515423 is a deficient number, since it is larger than the sum of its proper divisors (8377505145).

25132515423 is an equidigital number, since it uses as much as digits as its factorization.

25132515423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8377505144.

The product of its digits is 36000, while the sum is 33.

The spelling of 25132515423 in words is "twenty-five billion, one hundred thirty-two million, five hundred fifteen thousand, four hundred twenty-three".