25014990 has 256 divisors, whose sum is σ = 87091200. Its totient is φ = 4515840.

The previous prime is 25014989. The next prime is 25014991. The reversal of 25014990 is 9941052.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (25014989) and next prime (25014991).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25014991) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1471462 + ... + 1471478.

It is an arithmetic number, because the mean of its divisors is an integer number (340200).

Almost surely, 2^25014990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25014990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43545600).

25014990 is an abundant number, since it is smaller than the sum of its proper divisors (62076210).

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

25014990 is a wasteful number, since it uses less digits than its factorization.

25014990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72 (or 58 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 25014990 is about 5001.4987753672. The cubic root of 25014990 is about 292.4602035126.

The spelling of 25014990 in words is "twenty-five million, fourteen thousand, nine hundred ninety".