25248720 has 240 divisors, whose sum is σ = 96690240. Its totient is φ = 5419008.

The previous prime is 25248679. The next prime is 25248721. The reversal of 25248720 is 2784252.

It is a tau number, because it is divible by the number of its divisors (240).

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 (25248721) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 223384 + ... + 223496.

It is an arithmetic number, because the mean of its divisors is an integer number (402876).

Almost surely, 2^25248720 is an apocalyptic number.

25248720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25248720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48345120).

25248720 is an abundant number, since it is smaller than the sum of its proper divisors (71441520).

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

25248720 is a wasteful number, since it uses less digits than its factorization.

25248720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162 (or 149 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 25248720 is about 5024.8104441859. The cubic root of 25248720 is about 293.3682580088.

The spelling of 25248720 in words is "twenty-five million, two hundred forty-eight thousand, seven hundred twenty".