825467631 has 16 divisors (see below), whose sum is σ = 1149941760. Its totient is φ = 525713760.

The previous prime is 825467611. The next prime is 825467663. The reversal of 825467631 is 136764528.

It is not a de Polignac number, because 825467631 - 2²¹ = 823370479 is a prime.

It is a super-2 number, since 2×825467631² = 1362793619657504322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (825467611) 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, 49986 + ... + 64416.

It is an arithmetic number, because the mean of its divisors is an integer number (71871360).

Almost surely, 2^825467631 is an apocalyptic number.

825467631 is a deficient number, since it is larger than the sum of its proper divisors (324474129).

825467631 is a wasteful number, since it uses less digits than its factorization.

825467631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15286.

The product of its digits is 241920, while the sum is 42.

The square root of 825467631 is about 28730.9524903022. The cubic root of 825467631 is about 938.0659006138.

The spelling of 825467631 in words is "eight hundred twenty-five million, four hundred sixty-seven thousand, six hundred thirty-one".