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553201231 = 11231147481
BaseRepresentation
bin100000111110010…
…010111001001111
31102112221112102111
4200332102321033
52113104414411
6130521004451
716465063402
oct4076227117
91375845374
10553201231
112642a4300
12135323727
138a7c160b
1453683d39
1533876721
hex20f92e4f

553201231 has 12 divisors (see below), whose sum is σ = 627683392. Its totient is φ = 486684000.

The previous prime is 553201223. The next prime is 553201241. The reversal of 553201231 is 132102355.

It is not a de Polignac number, because 553201231 - 23 = 553201223 is a prime.

It is a super-2 number, since 2×5532012312 = 612063203959830722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (553201241) 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, 69990 + ... + 77491.

Almost surely, 2553201231 is an apocalyptic number.

553201231 is a deficient number, since it is larger than the sum of its proper divisors (74482161).

553201231 is a wasteful number, since it uses less digits than its factorization.

553201231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147534 (or 147523 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 553201231 is about 23520.2302497233. The cubic root of 553201231 is about 820.9077944619.

Adding to 553201231 its reverse (132102355), we get a palindrome (685303586).

The spelling of 553201231 in words is "five hundred fifty-three million, two hundred one thousand, two hundred thirty-one".

Divisors: 1 11 31 121 341 3751 147481 1622291 4571911 17845201 50291021 553201231