533257397 has 4 divisors (see below), whose sum is σ = 533580876. Its totient is φ = 532933920.

The previous prime is 533257367. The next prime is 533257421. The reversal of 533257397 is 793752335.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 793752335 = 5 ⋅158750467.

It can be written as a sum of positive squares in 2 ways, for example, as 294431281 + 238826116 = 17159^2 + 15454^2 .

It is a cyclic number.

It is not a de Polignac number, because 533257397 - 2⁸ = 533257141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (533257337) 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, 159254 + ... + 162567.

It is an arithmetic number, because the mean of its divisors is an integer number (133395219).

Almost surely, 2^533257397 is an apocalyptic number.

It is an amenable number.

533257397 is a deficient number, since it is larger than the sum of its proper divisors (323479).

533257397 is a wasteful number, since it uses less digits than its factorization.

533257397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323478.

The product of its digits is 595350, while the sum is 44.

The square root of 533257397 is about 23092.3666392165. The cubic root of 533257397 is about 810.9217759065.

The spelling of 533257397 in words is "five hundred thirty-three million, two hundred fifty-seven thousand, three hundred ninety-seven".