85533493 has 4 divisors (see below), whose sum is σ = 87522688. Its totient is φ = 83544300.

The previous prime is 85533463. The next prime is 85533509. The reversal of 85533493 is 39433558.

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: 39433558 = 2 ⋅19716779.

It is a cyclic number.

It is not a de Polignac number, because 85533493 - 2¹³ = 85525301 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 (85533463) 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, 994533 + ... + 994618.

It is an arithmetic number, because the mean of its divisors is an integer number (21880672).

Almost surely, 2^85533493 is an apocalyptic number.

It is an amenable number.

85533493 is a deficient number, since it is larger than the sum of its proper divisors (1989195).

85533493 is a wasteful number, since it uses less digits than its factorization.

85533493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1989194.

The product of its digits is 194400, while the sum is 40.

The square root of 85533493 is about 9248.4319211421. The cubic root of 85533493 is about 440.6009230712.

The spelling of 85533493 in words is "eighty-five million, five hundred thirty-three thousand, four hundred ninety-three".