25112532155 has 8 divisors (see below), whose sum is σ = 30629055984. Its totient is φ = 19760680800.

The previous prime is 25112532149. The next prime is 25112532157. The reversal of 25112532155 is 55123521152.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25112532155 - 2⁴ = 25112532139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25112532157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41167781 + ... + 41168390.

It is an arithmetic number, because the mean of its divisors is an integer number (3828631998).

Almost surely, 2^25112532155 is an apocalyptic number.

25112532155 is a deficient number, since it is larger than the sum of its proper divisors (5516523829).

25112532155 is an equidigital number, since it uses as much as digits as its factorization.

25112532155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82336237.

The product of its digits is 15000, while the sum is 32.

The spelling of 25112532155 in words is "twenty-five billion, one hundred twelve million, five hundred thirty-two thousand, one hundred fifty-five".