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25380572 = 2272833203
BaseRepresentation
bin110000011010…
…0011011011100
31202202110121012
41200310123130
522444134242
62303554352
7425505560
oct140643334
952673535
1025380572
1113365888
1285bb9b8
1353484b9
1435296a0
152365282
hex18346dc

25380572 has 24 divisors (see below), whose sum is σ = 50956416. Its totient is φ = 10835568.

The previous prime is 25380571. The next prime is 25380577. The reversal of 25380572 is 27508352.

It is a Smith number, since the sum of its digits (32) 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 (25380571) 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, 6323 + ... + 9525.

It is an arithmetic number, because the mean of its divisors is an integer number (2123184).

Almost surely, 225380572 is an apocalyptic number.

It is an amenable number.

25380572 is an abundant number, since it is smaller than the sum of its proper divisors (25575844).

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

25380572 is a wasteful number, since it uses less digits than its factorization.

25380572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3497 (or 3495 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 25380572 is about 5037.9134569780. The cubic root of 25380572 is about 293.8780403335.

It can be divided in two parts, 25380 and 572, that added together give a palindrome (25952).

The spelling of 25380572 in words is "twenty-five million, three hundred eighty thousand, five hundred seventy-two".

Divisors: 1 2 4 7 14 28 283 566 1132 1981 3203 3962 6406 7924 12812 22421 44842 89684 906449 1812898 3625796 6345143 12690286 25380572