25047021271 has 4 divisors (see below), whose sum is σ = 25519606632. Its totient is φ = 24574435912.

The previous prime is 25047021269. The next prime is 25047021287. The reversal of 25047021271 is 17212074052.

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 25047021271 - 2¹ = 25047021269 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 (25047021211) 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, 236292601 + ... + 236292706.

It is an arithmetic number, because the mean of its divisors is an integer number (6379901658).

Almost surely, 2^25047021271 is an apocalyptic number.

25047021271 is a deficient number, since it is larger than the sum of its proper divisors (472585361).

25047021271 is an equidigital number, since it uses as much as digits as its factorization.

25047021271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472585360.

The product of its (nonzero) digits is 7840, while the sum is 31.

The spelling of 25047021271 in words is "twenty-five billion, forty-seven million, twenty-one thousand, two hundred seventy-one".