32255591 has 4 divisors (see below), whose sum is σ = 33658032. Its totient is φ = 30853152.

The previous prime is 32255567. The next prime is 32255599. The reversal of 32255591 is 19555223.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19555223 = 67 ⋅291869.

It is a cyclic number.

It is not a de Polignac number, because 32255591 - 2¹⁰ = 32254567 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 (32255599) 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, 701186 + ... + 701231.

It is an arithmetic number, because the mean of its divisors is an integer number (8414508).

Almost surely, 2^32255591 is an apocalyptic number.

32255591 is a deficient number, since it is larger than the sum of its proper divisors (1402441).

32255591 is a wasteful number, since it uses less digits than its factorization.

32255591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402440.

The product of its digits is 13500, while the sum is 32.

The square root of 32255591 is about 5679.4005845688. The cubic root of 32255591 is about 318.3232311941.

The spelling of 32255591 in words is "thirty-two million, two hundred fifty-five thousand, five hundred ninety-one".