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25630 = 2511233
BaseRepresentation
bin110010000011110
31022011021
412100132
51310010
6314354
7134503
oct62036
938137
1025630
1118290
12129ba
13b887
1494aa
1578da
hex641e

25630 has 16 divisors (see below), whose sum is σ = 50544. Its totient is φ = 9280.

The previous prime is 25621. The next prime is 25633. The reversal of 25630 is 3652.

It is an alternating number because its digits alternate between even and odd.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7 + ... + 226.

It is an arithmetic number, because the mean of its divisors is an integer number (3159).

225630 is an apocalyptic number.

25630 is a deficient number, since it is larger than the sum of its proper divisors (24914).

25630 is a wasteful number, since it uses less digits than its factorization.

25630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 25630 is about 160.0937225503. The cubic root of 25630 is about 29.4837600934.

The spelling of 25630 in words is "twenty-five thousand, six hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 233 466 1165 2330 2563 5126 12815 25630