1550233 has 2 divisors, whose sum is σ = 1550234. Its totient is φ = 1550232.

The previous prime is 1550231. The next prime is 1550243. The reversal of 1550233 is 3320551.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1545049 + 5184 = 1243^2 + 72^2 .

It is a cyclic number.

It is not a de Polignac number, because 1550233 - 2¹ = 1550231 is a prime.

Together with 1550231, it forms a pair of twin primes.

1550233 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1550233.

It is not a weakly prime, because it can be changed into another prime (1550231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 775116 + 775117.

It is an arithmetic number, because the mean of its divisors is an integer number (775117).

2^1550233 is an apocalyptic number.

It is an amenable number.

1550233 is a deficient number, since it is larger than the sum of its proper divisors (1).

1550233 is an equidigital number, since it uses as much as digits as its factorization.

1550233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 1550233 is about 1245.0835313343. The cubic root of 1550233 is about 115.7352513524.

Adding to 1550233 its reverse (3320551), we get a palindrome (4870784).

It can be divided in two parts, 15502 and 33, that multiplied together give a triangular number (511566 = T₁₀₁₁).

The spelling of 1550233 in words is "one million, five hundred fifty thousand, two hundred thirty-three".