551541629 has 2 divisors, whose sum is σ = 551541630. Its totient is φ = 551541628.

The previous prime is 551541583. The next prime is 551541631. The reversal of 551541629 is 926145155.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 551169529 + 372100 = 23477^2 + 610^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-551541629 is a prime.

It is a super-3 number, since 3×551541629³ (a number of 27 digits) contains 333 as substring.

Together with 551541631, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 551541592 and 551541601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551541929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275770814 + 275770815.

It is an arithmetic number, because the mean of its divisors is an integer number (275770815).

Almost surely, 2^551541629 is an apocalyptic number.

It is an amenable number.

551541629 is a deficient number, since it is larger than the sum of its proper divisors (1).

551541629 is an equidigital number, since it uses as much as digits as its factorization.

551541629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54000, while the sum is 38.

The square root of 551541629 is about 23484.9234403691. The cubic root of 551541629 is about 820.0860652278.

The spelling of 551541629 in words is "five hundred fifty-one million, five hundred forty-one thousand, six hundred twenty-nine".