631586485 has 16 divisors (see below), whose sum is σ = 783086976. Its totient is φ = 488645568.

The previous prime is 631586479. The next prime is 631586489. The reversal of 631586485 is 584685136.

It is a cyclic number.

It is not a de Polignac number, because 631586485 - 2¹⁵ = 631553717 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 (631586489) by changing a digit.

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, 20674 + ... + 41116.

It is an arithmetic number, because the mean of its divisors is an integer number (48942936).

Almost surely, 2^631586485 is an apocalyptic number.

It is an amenable number.

631586485 is a deficient number, since it is larger than the sum of its proper divisors (151500491).

631586485 is a wasteful number, since it uses less digits than its factorization.

631586485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20652.

The product of its digits is 691200, while the sum is 46.

The square root of 631586485 is about 25131.3844624605. The cubic root of 631586485 is about 857.9808792873.

The spelling of 631586485 in words is "six hundred thirty-one million, five hundred eighty-six thousand, four hundred eighty-five".