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252556475 = 5297104147
BaseRepresentation
bin11110000110110…
…11010010111011
3122121020012100112
433003123102323
51004123301400
641021054535
76154460153
oct1703332273
9577205315
10252556475
1111a61a466
12706b744b
1340429202
1425783763
151728b835
hexf0db4bb

252556475 has 12 divisors (see below), whose sum is σ = 316401624. Its totient is φ = 199960320.

The previous prime is 252556453. The next prime is 252556477. The reversal of 252556475 is 574655252.

It is not a de Polignac number, because 252556475 - 212 = 252552379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252556477) 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 11 ways as a sum of consecutive naturals, for example, 49649 + ... + 54498.

It is an arithmetic number, because the mean of its divisors is an integer number (26366802).

Almost surely, 2252556475 is an apocalyptic number.

252556475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

252556475 is a deficient number, since it is larger than the sum of its proper divisors (63845149).

252556475 is a wasteful number, since it uses less digits than its factorization.

252556475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104254 (or 104249 counting only the distinct ones).

The product of its digits is 420000, while the sum is 41.

The square root of 252556475 is about 15892.0255159624. The cubic root of 252556475 is about 632.1005513184.

The spelling of 252556475 in words is "two hundred fifty-two million, five hundred fifty-six thousand, four hundred seventy-five".

Divisors: 1 5 25 97 485 2425 104147 520735 2603675 10102259 50511295 252556475