1630591625 has 32 divisors (see below), whose sum is σ = 2207587200. Its totient is φ = 1195300800.

The previous prime is 1630591619. The next prime is 1630591649. The reversal of 1630591625 is 5261950361.

It is not a de Polignac number, because 1630591625 - 2¹⁰ = 1630590601 is a prime.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 222266 + ... + 229484.

It is an arithmetic number, because the mean of its divisors is an integer number (68987100).

Almost surely, 2^1630591625 is an apocalyptic number.

It is an amenable number.

1630591625 is a deficient number, since it is larger than the sum of its proper divisors (576995575).

1630591625 is a wasteful number, since it uses less digits than its factorization.

1630591625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7386 (or 7376 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 1630591625 is about 40380.5847530716. The cubic root of 1630591625 is about 1177.0142905353.

The spelling of 1630591625 in words is "one billion, six hundred thirty million, five hundred ninety-one thousand, six hundred twenty-five".