25216944 has 20 divisors (see below), whose sum is σ = 65143896. Its totient is φ = 8405632.

The previous prime is 25216931. The next prime is 25216949. The reversal of 25216944 is 44961252.

It is not an unprimeable number, because it can be changed into a prime (25216949) 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, 262629 + ... + 262724.

Almost surely, 2^25216944 is an apocalyptic number.

25216944 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

25216944 is an abundant number, since it is smaller than the sum of its proper divisors (39926952).

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

25216944 is a wasteful number, since it uses less digits than its factorization.

25216944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525364 (or 525358 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 25216944 is about 5021.6475384081. The cubic root of 25216944 is about 293.2451364780.

The spelling of 25216944 in words is "twenty-five million, two hundred sixteen thousand, nine hundred forty-four".