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25285472 = 25790171
BaseRepresentation
bin110000001110…
…1001101100000
31202120122010222
41200131031200
522433113342
62301542212
7424631402
oct140351540
952518128
1025285472
1113300393
128574968
135314124
143502b72
152346ed2
hex181d360

25285472 has 12 divisors (see below), whose sum is σ = 49780836. Its totient is φ = 12642720.

The previous prime is 25285471. The next prime is 25285499. The reversal of 25285472 is 27458252.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25285471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 395054 + ... + 395117.

It is an arithmetic number, because the mean of its divisors is an integer number (4148403).

Almost surely, 225285472 is an apocalyptic number.

It is an amenable number.

25285472 is a deficient number, since it is larger than the sum of its proper divisors (24495364).

25285472 is an equidigital number, since it uses as much as digits as its factorization.

25285472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790181 (or 790173 counting only the distinct ones).

The product of its digits is 44800, while the sum is 35.

The square root of 25285472 is about 5028.4661677295. The cubic root of 25285472 is about 293.5105311364.

It can be divided in two parts, 2528 and 5472, that added together give a cube (8000 = 203).

The spelling of 25285472 in words is "twenty-five million, two hundred eighty-five thousand, four hundred seventy-two".

Divisors: 1 2 4 8 16 32 790171 1580342 3160684 6321368 12642736 25285472