25442316 has 24 divisors (see below), whose sum is σ = 65961840. Its totient is φ = 8480736.

The previous prime is 25442303. The next prime is 25442323. The reversal of 25442316 is 61324452.

It is a super-2 number, since 2×25442316² = 1294622886887712, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 25442316.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117681 + ... + 117896.

It is an arithmetic number, because the mean of its divisors is an integer number (2748410).

Almost surely, 2^25442316 is an apocalyptic number.

It is an amenable number.

25442316 is an abundant number, since it is smaller than the sum of its proper divisors (40519524).

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

25442316 is a wasteful number, since it uses less digits than its factorization.

25442316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235590 (or 235582 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 25442316 is about 5044.0376683764. The cubic root of 25442316 is about 294.1161556850.

Adding to 25442316 its reverse (61324452), we get a palindrome (86766768).

The spelling of 25442316 in words is "twenty-five million, four hundred forty-two thousand, three hundred sixteen".