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27530253025 = 5211421237791
BaseRepresentation
bin11001101000111011…
…100101001011100001
32122001122000202102221
4121220323211023201
5422340221044100
620351444511041
71663140201232
oct315073451341
978048022387
1027530253025
1110748123630
1254039ab481
1327997c8b62
141492431089
15ab1dc701a
hex668ee52e1

27530253025 has 24 divisors (see below), whose sum is σ = 37329539328. Its totient is φ = 19974360000.

The previous prime is 27530253019. The next prime is 27530253043. The reversal of 27530253025 is 52035203572.

It is not a de Polignac number, because 27530253025 - 23 = 27530253017 is a prime.

It is a Duffinian number.

27530253025 is a modest number, since divided by 30253025 gives 275 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3121 + ... + 234670.

It is an arithmetic number, because the mean of its divisors is an integer number (1555397472).

Almost surely, 227530253025 is an apocalyptic number.

27530253025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27530253025 is a deficient number, since it is larger than the sum of its proper divisors (9799286303).

27530253025 is a wasteful number, since it uses less digits than its factorization.

27530253025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238233 (or 238228 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 34.

Adding to 27530253025 its reverse (52035203572), we get a palindrome (79565456597).

The spelling of 27530253025 in words is "twenty-seven billion, five hundred thirty million, two hundred fifty-three thousand, twenty-five".

Divisors: 1 5 11 25 55 275 421 2105 4631 10525 23155 115775 237791 1188955 2615701 5944775 13078505 65392525 100110011 500550055 1101210121 2502750275 5506050605 27530253025