25403316 has 24 divisors (see below), whose sum is σ = 61852224. Its totient is φ = 8099520.

The previous prime is 25403311. The next prime is 25403317. The reversal of 25403316 is 61330452.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25403311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45745 + ... + 46296.

It is an arithmetic number, because the mean of its divisors is an integer number (2577176).

Almost surely, 2^25403316 is an apocalyptic number.

It is an amenable number.

25403316 is an abundant number, since it is smaller than the sum of its proper divisors (36448908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25403316 is a wasteful number, since it uses less digits than its factorization.

25403316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92071 (or 92069 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 25403316 is about 5040.1702352202. The cubic root of 25403316 is about 293.9657973077.

Adding to 25403316 its reverse (61330452), we get a palindrome (86733768).

The spelling of 25403316 in words is "twenty-five million, four hundred three thousand, three hundred sixteen".