25098816 has 56 divisors (see below), whose sum is σ = 67527424. Its totient is φ = 8225280.

The previous prime is 25098761. The next prime is 25098841. The reversal of 25098816 is 61889052.

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, 10641 + ... + 12783.

Almost surely, 2^25098816 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 25098816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33763712).

25098816 is an abundant number, since it is smaller than the sum of its proper divisors (42428608).

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

25098816 is a wasteful number, since it uses less digits than its factorization.

25098816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2219 (or 2209 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 25098816 is about 5009.8718546486. The cubic root of 25098816 is about 292.7865203266.

It can be divided in two parts, 2509 and 8816, that added together give a triangular number (11325 = T₁₅₀).

The spelling of 25098816 in words is "twenty-five million, ninety-eight thousand, eight hundred sixteen".