Search a number
-
+
553513121 = 7131603613
BaseRepresentation
bin100000111111011…
…111000010100001
31102120112101020222
4200333133002201
52113144404441
6130531412425
716500532610
oct4077370241
91376471228
10553513121
11264497667
12135454115
138a8a0575
1453725877
15338d8d4b
hex20fdf0a1

553513121 has 8 divisors (see below), whose sum is σ = 637416384. Its totient is φ = 470817360.

The previous prime is 553513109. The next prime is 553513123. The reversal of 553513121 is 121315355.

It is a happy number.

553513121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-553513121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (553513123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 300890 + ... + 302723.

It is an arithmetic number, because the mean of its divisors is an integer number (79677048).

Almost surely, 2553513121 is an apocalyptic number.

It is an amenable number.

553513121 is a deficient number, since it is larger than the sum of its proper divisors (83903263).

553513121 is a wasteful number, since it uses less digits than its factorization.

553513121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603751.

The product of its digits is 2250, while the sum is 26.

The square root of 553513121 is about 23526.8595651863. The cubic root of 553513121 is about 821.0620390155.

Adding to 553513121 its reverse (121315355), we get a palindrome (674828476).

The spelling of 553513121 in words is "five hundred fifty-three million, five hundred thirteen thousand, one hundred twenty-one".

Divisors: 1 7 131 917 603613 4225291 79073303 553513121