25274720 has 48 divisors (see below), whose sum is σ = 61000128. Its totient is φ = 9891840.

The previous prime is 25274713. The next prime is 25274729. The reversal of 25274720 is 2747252.

It is a super-2 number, since 2×25274720² = 1277622942156800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25274729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5840 + ... + 9200.

It is an arithmetic number, because the mean of its divisors is an integer number (1270836).

Almost surely, 2^25274720 is an apocalyptic number.

25274720 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 25274720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30500064).

25274720 is an abundant number, since it is smaller than the sum of its proper divisors (35725408).

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

25274720 is a wasteful number, since it uses less digits than its factorization.

25274720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3423 (or 3415 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 29.

The square root of 25274720 is about 5027.3969407637. The cubic root of 25274720 is about 293.4689226237.

The spelling of 25274720 in words is "twenty-five million, two hundred seventy-four thousand, seven hundred twenty".