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20252122025 = 527910254239
BaseRepresentation
bin10010110111000111…
…101101101110101001
31221021101221101122112
4102313013231232221
5312434020401100
613145333132105
71314603124352
oct226707555651
957241841575
1020252122025
118652882033
123b1248a035
131ba99b1175
14da1994d29
157d7e6db35
hex4b71edba9

20252122025 has 12 divisors (see below), whose sum is σ = 25430515200. Its totient is φ = 15996611280.

The previous prime is 20252122019. The next prime is 20252122027. The reversal of 20252122025 is 52022125202.

It is not a de Polignac number, because 20252122025 - 226 = 20185013161 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20252122027) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5125145 + ... + 5129094.

It is an arithmetic number, because the mean of its divisors is an integer number (2119209600).

Almost surely, 220252122025 is an apocalyptic number.

20252122025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20252122025 is a deficient number, since it is larger than the sum of its proper divisors (5178393175).

20252122025 is a wasteful number, since it uses less digits than its factorization.

20252122025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10254328 (or 10254323 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

Adding to 20252122025 its reverse (52022125202), we get a palindrome (72274247227).

The spelling of 20252122025 in words is "twenty billion, two hundred fifty-two million, one hundred twenty-two thousand, twenty-five".

Divisors: 1 5 25 79 395 1975 10254239 51271195 256355975 810084881 4050424405 20252122025