25213671 has 12 divisors (see below), whose sum is σ = 41622672. Its totient is φ = 14407776.

The previous prime is 25213651. The next prime is 25213697. The reversal of 25213671 is 17631252.

It is a happy number.

It is not a de Polignac number, because 25213671 - 2⁶ = 25213607 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25213621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 200046 + ... + 200171.

It is an arithmetic number, because the mean of its divisors is an integer number (3468556).

Almost surely, 2^25213671 is an apocalyptic number.

25213671 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

25213671 is a deficient number, since it is larger than the sum of its proper divisors (16409001).

25213671 is a wasteful number, since it uses less digits than its factorization.

25213671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400230 (or 400227 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 25213671 is about 5021.3216387720. The cubic root of 25213671 is about 293.2324488071.

The spelling of 25213671 in words is "twenty-five million, two hundred thirteen thousand, six hundred seventy-one".