25045571171 has 8 divisors (see below), whose sum is σ = 26690563584. Its totient is φ = 23446916680.

The previous prime is 25045571143. The next prime is 25045571197. The reversal of 25045571171 is 17117554052.

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

It is not a de Polignac number, because 25045571171 - 2¹⁸ = 25045309027 is a prime.

It is a super-2 number, since 2×25045571171² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25045571071) 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, 11583365 + ... + 11585526.

It is an arithmetic number, because the mean of its divisors is an integer number (3336320448).

Almost surely, 2^25045571171 is an apocalyptic number.

25045571171 is a deficient number, since it is larger than the sum of its proper divisors (1644992413).

25045571171 is a wasteful number, since it uses less digits than its factorization.

25045571171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23168961.

The product of its (nonzero) digits is 49000, while the sum is 38.

The spelling of 25045571171 in words is "twenty-five billion, forty-five million, five hundred seventy-one thousand, one hundred seventy-one".