8225536631 has 4 divisors (see below), whose sum is σ = 8858270232. Its totient is φ = 7592803032.

The previous prime is 8225536619. The next prime is 8225536661. The reversal of 8225536631 is 1366355228.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8225536631 is a prime.

It is a super-2 number, since 2×8225536631² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8225536661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 316366781 + ... + 316366806.

It is an arithmetic number, because the mean of its divisors is an integer number (2214567558).

Almost surely, 2^8225536631 is an apocalyptic number.

8225536631 is a deficient number, since it is larger than the sum of its proper divisors (632733601).

8225536631 is a wasteful number, since it uses less digits than its factorization.

8225536631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632733600.

The product of its digits is 259200, while the sum is 41.

The square root of 8225536631 is about 90694.7442303026. The cubic root of 8225536631 is about 2018.6208138555.

The spelling of 8225536631 in words is "eight billion, two hundred twenty-five million, five hundred thirty-six thousand, six hundred thirty-one".