1505533 has 4 divisors (see below), whose sum is σ = 1508220. Its totient is φ = 1502848.

The previous prime is 1505521. The next prime is 1505563. The reversal of 1505533 is 3355051.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 727609 + 777924 = 853^2 + 882^2 .

It is a cyclic number.

It is not a de Polignac number, because 1505533 - 2¹³ = 1497341 is a prime.

It is a super-2 number, since 2×1505533² = 4533259228178, which contains 22 as substring.

It is a Duffinian number.

1505533 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1505563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148 + ... + 1741.

It is an arithmetic number, because the mean of its divisors is an integer number (377055).

2^1505533 is an apocalyptic number.

It is an amenable number.

1505533 is a deficient number, since it is larger than the sum of its proper divisors (2687).

1505533 is an equidigital number, since it uses as much as digits as its factorization.

1505533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2686.

The product of its (nonzero) digits is 1125, while the sum is 22.

The square root of 1505533 is about 1227.0016299908. The cubic root of 1505533 is about 114.6120005261.

The spelling of 1505533 in words is "one million, five hundred five thousand, five hundred thirty-three".