5257533321 has 6 divisors (see below), whose sum is σ = 7594214810. Its totient is φ = 3505022208.

The previous prime is 5257533313. The next prime is 5257533367. The reversal of 5257533321 is 1233357525.

5257533321 is a `hidden beast` number, since 52 + 57 + 533 + 3 + 21 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4734953721 + 522579600 = 68811^2 + 22860^2 .

It is not a de Polignac number, because 5257533321 - 2³ = 5257533313 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5257533311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 292085176 + ... + 292085193.

Almost surely, 2^5257533321 is an apocalyptic number.

It is an amenable number.

5257533321 is a deficient number, since it is larger than the sum of its proper divisors (2336681489).

5257533321 is a wasteful number, since it uses less digits than its factorization.

5257533321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584170375 (or 584170372 counting only the distinct ones).

The product of its digits is 94500, while the sum is 36.

The square root of 5257533321 is about 72508.8499495062. The cubic root of 5257533321 is about 1738.8442275086.

The spelling of 5257533321 in words is "five billion, two hundred fifty-seven million, five hundred thirty-three thousand, three hundred twenty-one".