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26530825 = 525917987
BaseRepresentation
bin110010100110…
…1010000001001
31211220220110011
41211031100021
523242441300
62344351521
7441336226
oct145152011
954826404
1026530825
1113a81002
128a755a1
13565bc19
14374894d
1524e0eba
hex194d409

26530825 has 12 divisors (see below), whose sum is σ = 33457680. Its totient is φ = 20863760.

The previous prime is 26530817. The next prime is 26530831. The reversal of 26530825 is 52803562.

It is a happy number.

It is not a de Polignac number, because 26530825 - 23 = 26530817 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7519 + ... + 10468.

It is an arithmetic number, because the mean of its divisors is an integer number (2788140).

Almost surely, 226530825 is an apocalyptic number.

26530825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26530825 is a deficient number, since it is larger than the sum of its proper divisors (6926855).

26530825 is a wasteful number, since it uses less digits than its factorization.

26530825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18056 (or 18051 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 26530825 is about 5150.8081890127. The cubic root of 26530825 is about 298.2521513415.

The spelling of 26530825 in words is "twenty-six million, five hundred thirty thousand, eight hundred twenty-five".

Divisors: 1 5 25 59 295 1475 17987 89935 449675 1061233 5306165 26530825