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225632051 = 435247257
BaseRepresentation
bin11010111001011…
…01111100110011
3120201120021222122
431130231330303
5430230211201
634220024455
75406561251
oct1534557463
9521507878
10225632051
111063aa777
126369212b
13379900b8
1421d755d1
1514c1de1b
hexd72df33

225632051 has 4 divisors (see below), whose sum is σ = 230879352. Its totient is φ = 220384752.

The previous prime is 225632027. The next prime is 225632063. The reversal of 225632051 is 150236522.

225632051 = T3218 + T3219 + ... + T3260.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 150236522 = 275118261.

It is a cyclic number.

It is not a de Polignac number, because 225632051 - 210 = 225631027 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 225632051.

It is not an unprimeable number, because it can be changed into a prime (225632651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2623586 + ... + 2623671.

It is an arithmetic number, because the mean of its divisors is an integer number (57719838).

Almost surely, 2225632051 is an apocalyptic number.

225632051 is a deficient number, since it is larger than the sum of its proper divisors (5247301).

225632051 is an equidigital number, since it uses as much as digits as its factorization.

225632051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5247300.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 225632051 is about 15021.0535915428. The cubic root of 225632051 is about 608.7891873799.

Adding to 225632051 its reverse (150236522), we get a palindrome (375868573).

The spelling of 225632051 in words is "two hundred twenty-five million, six hundred thirty-two thousand, fifty-one".

Divisors: 1 43 5247257 225632051