25362921 has 4 divisors (see below), whose sum is σ = 33817232. Its totient is φ = 16908612.

The previous prime is 25362889. The next prime is 25362941. The reversal of 25362921 is 12926352.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 25362921 - 2⁵ = 25362889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25362941) 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, 4227151 + ... + 4227156.

It is an arithmetic number, because the mean of its divisors is an integer number (8454308).

Almost surely, 2^25362921 is an apocalyptic number.

It is an amenable number.

25362921 is a deficient number, since it is larger than the sum of its proper divisors (8454311).

25362921 is an equidigital number, since it uses as much as digits as its factorization.

25362921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8454310.

The product of its digits is 6480, while the sum is 30.

The square root of 25362921 is about 5036.1613357795. The cubic root of 25362921 is about 293.8098983934.

The spelling of 25362921 in words is "twenty-five million, three hundred sixty-two thousand, nine hundred twenty-one".