533332421 has 4 divisors (see below), whose sum is σ = 533485344. Its totient is φ = 533179500.

The previous prime is 533332367. The next prime is 533332427. The reversal of 533332421 is 124233335.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 533332421 - 2⁶ = 533332357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (533332427) 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, 71105 + ... + 78246.

It is an arithmetic number, because the mean of its divisors is an integer number (133371336).

Almost surely, 2^533332421 is an apocalyptic number.

It is an amenable number.

533332421 is a deficient number, since it is larger than the sum of its proper divisors (152923).

533332421 is a wasteful number, since it uses less digits than its factorization.

533332421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152922.

The product of its digits is 6480, while the sum is 26.

The square root of 533332421 is about 23093.9910149805. The cubic root of 533332421 is about 810.9598036599.

Adding to 533332421 its reverse (124233335), we get a palindrome (657565756).

The spelling of 533332421 in words is "five hundred thirty-three million, three hundred thirty-two thousand, four hundred twenty-one".