25304253 has 32 divisors (see below), whose sum is σ = 37847040. Its totient is φ = 14938560.

The previous prime is 25304249. The next prime is 25304261. The reversal of 25304253 is 35240352.

It is not a de Polignac number, because 25304253 - 2² = 25304249 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25304233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 132388 + ... + 132578.

It is an arithmetic number, because the mean of its divisors is an integer number (1182720).

Almost surely, 2^25304253 is an apocalyptic number.

It is an amenable number.

25304253 is a deficient number, since it is larger than the sum of its proper divisors (12542787).

25304253 is a wasteful number, since it uses less digits than its factorization.

25304253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329.

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 25304253 is about 5030.3332891569. Note that the first 3 decimals coincide. The cubic root of 25304253 is about 293.5831823021.

The spelling of 25304253 in words is "twenty-five million, three hundred four thousand, two hundred fifty-three".