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25088065 = 55017613
BaseRepresentation
bin101111110110…
…1000001000001
31202012121100121
41133231001001
522410304230
62253420241
7423150022
oct137550101
952177317
1025088065
1113186042
12849a681
135275312
143490c49
15230877a
hex17ed041

25088065 has 4 divisors (see below), whose sum is σ = 30105684. Its totient is φ = 20070448.

The previous prime is 25088057. The next prime is 25088071. The reversal of 25088065 is 56088052.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4376464 + 20711601 = 2092^2 + 4551^2 .

It is a cyclic number.

It is not a de Polignac number, because 25088065 - 23 = 25088057 is a prime.

It is a super-2 number, since 2×250880652 = 1258822010888450, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25088065.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2508802 + ... + 2508811.

It is an arithmetic number, because the mean of its divisors is an integer number (7526421).

Almost surely, 225088065 is an apocalyptic number.

It is an amenable number.

25088065 is a deficient number, since it is larger than the sum of its proper divisors (5017619).

25088065 is an equidigital number, since it uses as much as digits as its factorization.

25088065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5017618.

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 25088065 is about 5008.7987581854. The cubic root of 25088065 is about 292.7447096235.

The spelling of 25088065 in words is "twenty-five million, eighty-eight thousand, sixty-five".

Divisors: 1 5 5017613 25088065