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25088239 = 1123531871
BaseRepresentation
bin101111110110…
…1000011101111
31202012121121001
41133231003233
522410310424
62253421131
7423150361
oct137550357
952177531
1025088239
1113186190
12849a7a7
135275417
143490d31
152308844
hex17ed0ef

25088239 has 16 divisors (see below), whose sum is σ = 29113344. Its totient is φ = 21392800.

The previous prime is 25088201. The next prime is 25088279. The reversal of 25088239 is 93288052.

It is not a de Polignac number, because 25088239 - 213 = 25080047 is a prime.

It is a super-2 number, since 2×250882392 = 1258839472242242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25088198 and 25088207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25088279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12474 + ... + 14344.

It is an arithmetic number, because the mean of its divisors is an integer number (1819584).

Almost surely, 225088239 is an apocalyptic number.

25088239 is a deficient number, since it is larger than the sum of its proper divisors (4025105).

25088239 is a wasteful number, since it uses less digits than its factorization.

25088239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1958.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 25088239 is about 5008.8161275894. The cubic root of 25088239 is about 292.7453864057.

The spelling of 25088239 in words is "twenty-five million, eighty-eight thousand, two hundred thirty-nine".

Divisors: 1 11 23 53 253 583 1219 1871 13409 20581 43033 99163 473363 1090793 2280749 25088239