885057631 has 2 divisors, whose sum is σ = 885057632. Its totient is φ = 885057630.

The previous prime is 885057617. The next prime is 885057661. The reversal of 885057631 is 136750588.

885057631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 885057631 - 2⁵ = 885057599 is a prime.

It is a super-2 number, since 2×885057631² = 1566654020382664322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (885057661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 442528815 + 442528816.

It is an arithmetic number, because the mean of its divisors is an integer number (442528816).

Almost surely, 2^885057631 is an apocalyptic number.

885057631 is a deficient number, since it is larger than the sum of its proper divisors (1).

885057631 is an equidigital number, since it uses as much as digits as its factorization.

885057631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 201600, while the sum is 43.

The square root of 885057631 is about 29749.9181679547. The cubic root of 885057631 is about 960.1163165630.

The spelling of 885057631 in words is "eight hundred eighty-five million, fifty-seven thousand, six hundred thirty-one".