25280873 has 4 divisors (see below), whose sum is σ = 25448448. Its totient is φ = 25113300.

The previous prime is 25280839. The next prime is 25280881. The reversal of 25280873 is 37808252.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 25280873 - 2⁶ = 25280809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25280803) 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, 83561 + ... + 83862.

It is an arithmetic number, because the mean of its divisors is an integer number (6362112).

Almost surely, 2^25280873 is an apocalyptic number.

It is an amenable number.

25280873 is a deficient number, since it is larger than the sum of its proper divisors (167575).

25280873 is a wasteful number, since it uses less digits than its factorization.

25280873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167574.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 25280873 is about 5028.0088504298. The cubic root of 25280873 is about 293.4927351891.

The spelling of 25280873 in words is "twenty-five million, two hundred eighty thousand, eight hundred seventy-three".