25274784 has 72 divisors (see below), whose sum is σ = 70555968. Its totient is φ = 7920640.

The previous prime is 25274779. The next prime is 25274789. The reversal of 25274784 is 48747252.

It is an interprime number because it is at equal distance from previous prime (25274779) and next prime (25274789).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25274789) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27289 + ... + 28199.

It is an arithmetic number, because the mean of its divisors is an integer number (979944).

Almost surely, 2^25274784 is an apocalyptic number.

25274784 is a gapful number since it is divisible by the number (24) 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 25274784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35277984).

25274784 is an abundant number, since it is smaller than the sum of its proper divisors (45281184).

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

25274784 is a wasteful number, since it uses less digits than its factorization.

25274784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 958 (or 933 counting only the distinct ones).

The product of its digits is 125440, while the sum is 39.

The square root of 25274784 is about 5027.4033058827. The cubic root of 25274784 is about 293.4691703283.

The spelling of 25274784 in words is "twenty-five million, two hundred seventy-four thousand, seven hundred eighty-four".