855648031 has 16 divisors (see below), whose sum is σ = 995904000. Its totient is φ = 719934048.

The previous prime is 855648007. The next prime is 855648067. The reversal of 855648031 is 130846558.

It is not a de Polignac number, because 855648031 - 2¹⁵ = 855615263 is a prime.

It is a super-2 number, since 2×855648031² = 1464267105908353922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855648631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 438045 + ... + 439993.

It is an arithmetic number, because the mean of its divisors is an integer number (62244000).

Almost surely, 2^855648031 is an apocalyptic number.

855648031 is a deficient number, since it is larger than the sum of its proper divisors (140255969).

855648031 is a wasteful number, since it uses less digits than its factorization.

855648031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3078.

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 855648031 is about 29251.4620318370. The cubic root of 855648031 is about 949.3617249064.

The spelling of 855648031 in words is "eight hundred fifty-five million, six hundred forty-eight thousand, thirty-one".