25049616 has 40 divisors (see below), whose sum is σ = 65364864. Its totient is φ = 8265600.

The previous prime is 25049611. The next prime is 25049621. The reversal of 25049616 is 61694052.

It is an interprime number because it is at equal distance from previous prime (25049611) and next prime (25049621).

It is not an unprimeable number, because it can be changed into a prime (25049611) 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, 2265 + ... + 7431.

Almost surely, 2^25049616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25049616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32682432).

25049616 is an abundant number, since it is smaller than the sum of its proper divisors (40315248).

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

25049616 is a wasteful number, since it uses less digits than its factorization.

25049616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5279 (or 5273 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 25049616 is about 5004.9591406924. The cubic root of 25049616 is about 292.5950834131.

The spelling of 25049616 in words is "twenty-five million, forty-nine thousand, six hundred sixteen".