551485589 has 2 divisors, whose sum is σ = 551485590. Its totient is φ = 551485588.

The previous prime is 551485577. The next prime is 551485667. The reversal of 551485589 is 985584155.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 526335364 + 25150225 = 22942^2 + 5015^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-551485589 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551485549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275742794 + 275742795.

It is an arithmetic number, because the mean of its divisors is an integer number (275742795).

Almost surely, 2^551485589 is an apocalyptic number.

It is an amenable number.

551485589 is a deficient number, since it is larger than the sum of its proper divisors (1).

551485589 is an equidigital number, since it uses as much as digits as its factorization.

551485589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440000, while the sum is 50.

The square root of 551485589 is about 23483.7303041915. The cubic root of 551485589 is about 820.0582890351.

The spelling of 551485589 in words is "five hundred fifty-one million, four hundred eighty-five thousand, five hundred eighty-nine".