25254720 has 224 divisors, whose sum is σ = 92659200. Its totient is φ = 6469632.

The previous prime is 25254703. The next prime is 25254727. The reversal of 25254720 is 2745252.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25254727) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 319641 + ... + 319719.

Almost surely, 2^25254720 is an apocalyptic number.

25254720 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 25254720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46329600).

25254720 is an abundant number, since it is smaller than the sum of its proper divisors (67404480).

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

25254720 is a wasteful number, since it uses less digits than its factorization.

25254720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142 (or 126 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 25254720 is about 5025.4074461679. The cubic root of 25254720 is about 293.3914944360.

Adding to 25254720 its reverse (2745252), we get a palindrome (27999972).

The spelling of 25254720 in words is "twenty-five million, two hundred fifty-four thousand, seven hundred twenty".