855432465 has 16 divisors (see below), whose sum is σ = 1370041728. Its totient is φ = 455780736.

The previous prime is 855432449. The next prime is 855432481. The reversal of 855432465 is 564234558.

It is an interprime number because it is at equal distance from previous prime (855432449) and next prime (855432481).

It is not a de Polignac number, because 855432465 - 2⁴ = 855432449 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 12109 + ... + 43098.

It is an arithmetic number, because the mean of its divisors is an integer number (85627608).

Almost surely, 2^855432465 is an apocalyptic number.

It is an amenable number.

855432465 is a deficient number, since it is larger than the sum of its proper divisors (514609263).

855432465 is a wasteful number, since it uses less digits than its factorization.

855432465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56248.

The product of its digits is 576000, while the sum is 42.

The square root of 855432465 is about 29247.7770950204. Note that the first 3 decimals coincide. The cubic root of 855432465 is about 949.2819930187.

The spelling of 855432465 in words is "eight hundred fifty-five million, four hundred thirty-two thousand, four hundred sixty-five".