733528521 has 16 divisors (see below), whose sum is σ = 1185501120. Its totient is φ = 444562560.

The previous prime is 733528517. The next prime is 733528571. The reversal of 733528521 is 125825337.

It is a happy number.

733528521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 733528521 - 2² = 733528517 is a prime.

It is a super-2 number, since 2×733528521² = 1076128182240894882, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (733528501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1234600 + ... + 1235193.

It is an arithmetic number, because the mean of its divisors is an integer number (74093820).

Almost surely, 2^733528521 is an apocalyptic number.

It is an amenable number.

733528521 is a deficient number, since it is larger than the sum of its proper divisors (451972599).

733528521 is a wasteful number, since it uses less digits than its factorization.

733528521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2469813 (or 2469807 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 733528521 is about 27083.7316668143. The cubic root of 733528521 is about 901.8597433028.

The spelling of 733528521 in words is "seven hundred thirty-three million, five hundred twenty-eight thousand, five hundred twenty-one".