533766538 has 4 divisors (see below), whose sum is σ = 800649810. Its totient is φ = 266883268.

The previous prime is 533766529. The next prime is 533766539. The reversal of 533766538 is 835667335.

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 only one way, i.e., 282004849 + 251761689 = 16793^2 + 15867^2 .

It is not an unprimeable number, because it can be changed into a prime (533766539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133441633 + ... + 133441636.

Almost surely, 2^533766538 is an apocalyptic number.

533766538 is a deficient number, since it is larger than the sum of its proper divisors (266883272).

533766538 is a wasteful number, since it uses less digits than its factorization.

533766538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266883271.

The product of its digits is 1360800, while the sum is 46.

The square root of 533766538 is about 23103.3880199420. The cubic root of 533766538 is about 811.1797765114.

The spelling of 533766538 in words is "five hundred thirty-three million, seven hundred sixty-six thousand, five hundred thirty-eight".