551075533 has 2 divisors, whose sum is σ = 551075534. Its totient is φ = 551075532.

The previous prime is 551075509. The next prime is 551075549. The reversal of 551075533 is 335570155.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 387184329 + 163891204 = 19677^2 + 12802^2 .

It is a cyclic number.

It is not a de Polignac number, because 551075533 - 2²⁹ = 14204621 is a prime.

It is a super-3 number, since 3×551075533³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551075633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275537766 + 275537767.

It is an arithmetic number, because the mean of its divisors is an integer number (275537767).

Almost surely, 2^551075533 is an apocalyptic number.

It is an amenable number.

551075533 is a deficient number, since it is larger than the sum of its proper divisors (1).

551075533 is an equidigital number, since it uses as much as digits as its factorization.

551075533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39375, while the sum is 34.

The square root of 551075533 is about 23474.9980404685. The cubic root of 551075533 is about 819.8549877418.

The spelling of 551075533 in words is "five hundred fifty-one million, seventy-five thousand, five hundred thirty-three".