25424416 has 24 divisors (see below), whose sum is σ = 51782220. Its totient is φ = 12273408.

The previous prime is 25424411. The next prime is 25424419. The reversal of 25424416 is 61442452.

It can be written as a sum of positive squares in 2 ways, for example, as 25040016 + 384400 = 5004^2 + 620^2 .

It is not an unprimeable number, because it can be changed into a prime (25424411) 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, 12771 + ... + 14626.

Almost surely, 2^25424416 is an apocalyptic number.

It is an amenable number.

25424416 is an abundant number, since it is smaller than the sum of its proper divisors (26357804).

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

25424416 is a wasteful number, since it uses less digits than its factorization.

25424416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27436 (or 27428 counting only the distinct ones).

The product of its digits is 7680, while the sum is 28.

The square root of 25424416 is about 5042.2629840182. The cubic root of 25424416 is about 294.0471641366.

Adding to 25424416 its reverse (61442452), we get a palindrome (86866868).

The spelling of 25424416 in words is "twenty-five million, four hundred twenty-four thousand, four hundred sixteen".