25086720 has 144 divisors (see below), whose sum is σ = 82414080. Its totient is φ = 6500352.

The previous prime is 25086709. The next prime is 25086731. The reversal of 25086720 is 2768052.

It is an interprime number because it is at equal distance from previous prime (25086709) and next prime (25086731).

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180411 + ... + 180549.

It is an arithmetic number, because the mean of its divisors is an integer number (572320).

Almost surely, 2^25086720 is an apocalyptic number.

25086720 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 25086720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41207040).

25086720 is an abundant number, since it is smaller than the sum of its proper divisors (57327360).

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

25086720 is a wasteful number, since it uses less digits than its factorization.

25086720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210 (or 196 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 25086720 is about 5008.6644926567. The cubic root of 25086720 is about 292.7394780699.

The spelling of 25086720 in words is "twenty-five million, eighty-six thousand, seven hundred twenty".