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553205131 = 23296712379
BaseRepresentation
bin100000111110010…
…011110110001011
31102112221201202221
4200332103312023
52113110031011
6130521034511
716465110643
oct4076236613
91375851687
10553205131
112642a7226
12135325a37
138a7c331b
1453685523
1533877971
hex20f93d8b

553205131 has 16 divisors (see below), whose sum is σ = 606124800. Its totient is φ = 503239968.

The previous prime is 553205113. The next prime is 553205141. The reversal of 553205131 is 131502355.

It is a cyclic number.

It is not a de Polignac number, because 553205131 - 25 = 553205099 is a prime.

It is a super-2 number, since 2×5532051312 = 612071833929454322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 553205096 and 553205105.

It is not an unprimeable number, because it can be changed into a prime (553205101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38500 + ... + 50878.

It is an arithmetic number, because the mean of its divisors is an integer number (37882800).

Almost surely, 2553205131 is an apocalyptic number.

553205131 is a deficient number, since it is larger than the sum of its proper divisors (52919669).

553205131 is a wasteful number, since it uses less digits than its factorization.

553205131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12498.

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 553205131 is about 23520.3131569288. The cubic root of 553205131 is about 820.9097235567.

Adding to 553205131 its reverse (131502355), we get a palindrome (684707486).

The spelling of 553205131 in words is "five hundred fifty-three million, two hundred five thousand, one hundred thirty-one".

Divisors: 1 23 29 67 667 1541 1943 12379 44689 284717 358991 829393 8256793 19076039 24052397 553205131