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52561233 = 3223253919
BaseRepresentation
bin1100100010000…
…0010101010001
310122220101110100
43020200111101
5101423424413
65114323013
71205522514
oct310402521
9118811410
1052561233
112774003a
1215729469
13ab7412a
146da2d7b
154933a73
hex3220551

52561233 has 12 divisors (see below), whose sum is σ = 79223040. Its totient is φ = 33517176.

The previous prime is 52561219. The next prime is 52561237. The reversal of 52561233 is 33216525.

It is not a de Polignac number, because 52561233 - 213 = 52553041 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 52561197 and 52561206.

It is not an unprimeable number, because it can be changed into a prime (52561237) 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, 126753 + ... + 127166.

It is an arithmetic number, because the mean of its divisors is an integer number (6601920).

Almost surely, 252561233 is an apocalyptic number.

It is an amenable number.

52561233 is a deficient number, since it is larger than the sum of its proper divisors (26661807).

52561233 is a wasteful number, since it uses less digits than its factorization.

52561233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253948 (or 253945 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 52561233 is about 7249.9126201631. The cubic root of 52561233 is about 374.5891393471.

Adding to 52561233 its reverse (33216525), we get a palindrome (85777758).

The spelling of 52561233 in words is "fifty-two million, five hundred sixty-one thousand, two hundred thirty-three".

Divisors: 1 3 9 23 69 207 253919 761757 2285271 5840137 17520411 52561233