551548133 has 2 divisors, whose sum is σ = 551548134. Its totient is φ = 551548132.

The previous prime is 551548099. The next prime is 551548139. The reversal of 551548133 is 331845155.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 517699009 + 33849124 = 22753^2 + 5818^2 .

It is a cyclic number.

It is not a de Polignac number, because 551548133 - 2¹⁴ = 551531749 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 551548093 and 551548102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551548139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275774066 + 275774067.

It is an arithmetic number, because the mean of its divisors is an integer number (275774067).

Almost surely, 2^551548133 is an apocalyptic number.

It is an amenable number.

551548133 is a deficient number, since it is larger than the sum of its proper divisors (1).

551548133 is an equidigital number, since it uses as much as digits as its factorization.

551548133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36000, while the sum is 35.

The square root of 551548133 is about 23485.0619117770. The cubic root of 551548133 is about 820.0892888097.

The spelling of 551548133 in words is "five hundred fifty-one million, five hundred forty-eight thousand, one hundred thirty-three".