64802533 has 4 divisors (see below), whose sum is σ = 64830240. Its totient is φ = 64774828.

The previous prime is 64802459. The next prime is 64802537. The reversal of 64802533 is 33520846.

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, and also an emirpimes, since its reverse is a distinct semiprime: 33520846 = 2 ⋅16760423.

It is a cyclic number.

It is not a de Polignac number, because 64802533 - 2⁹ = 64802021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64802495 and 64802504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64802537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9985 + ... + 15142.

It is an arithmetic number, because the mean of its divisors is an integer number (16207560).

Almost surely, 2^64802533 is an apocalyptic number.

It is an amenable number.

64802533 is a deficient number, since it is larger than the sum of its proper divisors (27707).

64802533 is a wasteful number, since it uses less digits than its factorization.

64802533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27706.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 64802533 is about 8050.0020496892. The cubic root of 64802533 is about 401.6650035418.

The spelling of 64802533 in words is "sixty-four million, eight hundred two thousand, five hundred thirty-three".