25072305 has 16 divisors (see below), whose sum is σ = 42227520. Its totient is φ = 12667968.

The previous prime is 25072283. The next prime is 25072319. The reversal of 25072305 is 50327052.

It is not a de Polignac number, because 25072305 - 2¹⁶ = 25006769 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43702 + ... + 44271.

It is an arithmetic number, because the mean of its divisors is an integer number (2639220).

Almost surely, 2^25072305 is an apocalyptic number.

It is an amenable number.

25072305 is a deficient number, since it is larger than the sum of its proper divisors (17155215).

25072305 is a wasteful number, since it uses less digits than its factorization.

25072305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88000.

The product of its (nonzero) digits is 2100, while the sum is 24.

The square root of 25072305 is about 5007.2252795336. The cubic root of 25072305 is about 292.6833972951.

Adding to 25072305 its reverse (50327052), we get a palindrome (75399357).

The spelling of 25072305 in words is "twenty-five million, seventy-two thousand, three hundred five".