25212073 has 4 divisors (see below), whose sum is σ = 25275348. Its totient is φ = 25148800.

The previous prime is 25212067. The next prime is 25212097. The reversal of 25212073 is 37021252.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24235929 + 976144 = 4923^2 + 988^2 .

It is a cyclic number.

It is not a de Polignac number, because 25212073 - 2⁵ = 25212041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25212013) 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, 31036 + ... + 31837.

It is an arithmetic number, because the mean of its divisors is an integer number (6318837).

Almost surely, 2^25212073 is an apocalyptic number.

It is an amenable number.

25212073 is a deficient number, since it is larger than the sum of its proper divisors (63275).

25212073 is an equidigital number, since it uses as much as digits as its factorization.

25212073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63274.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 25212073 is about 5021.1625147967. The cubic root of 25212073 is about 293.2262538166.

The spelling of 25212073 in words is "twenty-five million, two hundred twelve thousand, seventy-three".