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531241552253 = 829764028149
BaseRepresentation
bin1111011101100000111…
…01101100100101111101
31212210020010201000010102
413232300131230211331
532200440314133003
61044014330050445
753244442455146
oct7566035544575
91783203630112
10531241552253
11195331009075
1286b5b879a25
133b1327c5579
141b9d84d6acd
15dc43754588
hex7bb076c97d

531241552253 has 4 divisors (see below), whose sum is σ = 531305588700. Its totient is φ = 531177515808.

The previous prime is 531241552217. The next prime is 531241552291. The reversal of 531241552253 is 352255142135.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 496486525924 + 34755026329 = 704618^2 + 186427^2 .

It is a cyclic number.

It is not a de Polignac number, because 531241552253 - 216 = 531241486717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531241552453) 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, 32005778 + ... + 32022371.

It is an arithmetic number, because the mean of its divisors is an integer number (132826397175).

Almost surely, 2531241552253 is an apocalyptic number.

It is an amenable number.

531241552253 is a deficient number, since it is larger than the sum of its proper divisors (64036447).

531241552253 is an equidigital number, since it uses as much as digits as its factorization.

531241552253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64036446.

The product of its digits is 180000, while the sum is 38.

Adding to 531241552253 its reverse (352255142135), we get a palindrome (883496694388).

The spelling of 531241552253 in words is "five hundred thirty-one billion, two hundred forty-one million, five hundred fifty-two thousand, two hundred fifty-three".

Divisors: 1 8297 64028149 531241552253