25112532143 has 4 divisors (see below), whose sum is σ = 25113007008. Its totient is φ = 25112057280.

The previous prime is 25112532139. The next prime is 25112532149. The reversal of 25112532143 is 34123521152.

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 25112532143 - 2² = 25112532139 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 (25112532149) 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, 146498 + ... + 267743.

It is an arithmetic number, because the mean of its divisors is an integer number (6278251752).

Almost surely, 2^25112532143 is an apocalyptic number.

25112532143 is a deficient number, since it is larger than the sum of its proper divisors (474865).

25112532143 is an equidigital number, since it uses as much as digits as its factorization.

25112532143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474864.

The product of its digits is 7200, while the sum is 29.

The spelling of 25112532143 in words is "twenty-five billion, one hundred twelve million, five hundred thirty-two thousand, one hundred forty-three".