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25514442 = 2321417469
BaseRepresentation
bin110000101010…
…1000111001010
31210000021020100
41201111013022
523012430232
62310510230
7426604062
oct141250712
953007210
1025514442
1113447418
128665376
135394405
1435623a2
15238ec7c
hex18551ca

25514442 has 12 divisors (see below), whose sum is σ = 55281330. Its totient is φ = 8504808.

The previous prime is 25514441. The next prime is 25514443. The reversal of 25514442 is 24441552.

It is an interprime number because it is at equal distance from previous prime (25514441) and next prime (25514443).

It can be written as a sum of positive squares in only one way, i.e., 13549761 + 11964681 = 3681^2 + 3459^2 .

It is not an unprimeable number, because it can be changed into a prime (25514441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 708717 + ... + 708752.

Almost surely, 225514442 is an apocalyptic number.

25514442 is an abundant number, since it is smaller than the sum of its proper divisors (29766888).

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

25514442 is a wasteful number, since it uses less digits than its factorization.

25514442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1417477 (or 1417474 counting only the distinct ones).

The product of its digits is 6400, while the sum is 27.

The square root of 25514442 is about 5051.1822378528. The cubic root of 25514442 is about 294.3938218049.

Adding to 25514442 its reverse (24441552), we get a palindrome (49955994).

The spelling of 25514442 in words is "twenty-five million, five hundred fourteen thousand, four hundred forty-two".

Divisors: 1 2 3 6 9 18 1417469 2834938 4252407 8504814 12757221 25514442