551911133 has 2 divisors, whose sum is σ = 551911134. Its totient is φ = 551911132.

The previous prime is 551911123. The next prime is 551911147. The reversal of 551911133 is 331119155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 458730724 + 93180409 = 21418^2 + 9653^2 .

It is a cyclic number.

It is not a de Polignac number, because 551911133 - 2¹⁰ = 551910109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 551911096 and 551911105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551911123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275955566 + 275955567.

It is an arithmetic number, because the mean of its divisors is an integer number (275955567).

Almost surely, 2^551911133 is an apocalyptic number.

It is an amenable number.

551911133 is a deficient number, since it is larger than the sum of its proper divisors (1).

551911133 is an equidigital number, since it uses as much as digits as its factorization.

551911133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2025, while the sum is 29.

The square root of 551911133 is about 23492.7889574652. The cubic root of 551911133 is about 820.2691625804.

The spelling of 551911133 in words is "five hundred fifty-one million, nine hundred eleven thousand, one hundred thirty-three".