808552491 has 16 divisors (see below), whose sum is σ = 1089959328. Its totient is φ = 533120000.

The previous prime is 808552489. The next prime is 808552531. The reversal of 808552491 is 194255808.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 808552491 - 2¹ = 808552489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (808552411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111991 + ... + 118991.

It is an arithmetic number, because the mean of its divisors is an integer number (68122458).

Almost surely, 2^808552491 is an apocalyptic number.

808552491 is a deficient number, since it is larger than the sum of its proper divisors (281406837).

808552491 is a wasteful number, since it uses less digits than its factorization.

808552491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7422.

The product of its (nonzero) digits is 115200, while the sum is 42.

The square root of 808552491 is about 28435.0574291666. The cubic root of 808552491 is about 931.6141432787.

The spelling of 808552491 in words is "eight hundred eight million, five hundred fifty-two thousand, four hundred ninety-one".