1650655625 has 40 divisors (see below), whose sum is σ = 2115822720. Its totient is φ = 1287000000.

The previous prime is 1650655619. The next prime is 1650655631. The reversal of 1650655625 is 5265560561.

It is an interprime number because it is at equal distance from previous prime (1650655619) and next prime (1650655631).

It is not a de Polignac number, because 1650655625 - 2¹⁶ = 1650590089 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4986710 + ... + 4987040.

It is an arithmetic number, because the mean of its divisors is an integer number (52895568).

Almost surely, 2^1650655625 is an apocalyptic number.

It is an amenable number.

1650655625 is a deficient number, since it is larger than the sum of its proper divisors (465167095).

1650655625 is an equidigital number, since it uses as much as digits as its factorization.

1650655625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531 (or 516 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 41.

The square root of 1650655625 is about 40628.2614075473. The cubic root of 1650655625 is about 1181.8222407741.

The spelling of 1650655625 in words is "one billion, six hundred fifty million, six hundred fifty-five thousand, six hundred twenty-five".