1650379025 has 12 divisors (see below), whose sum is σ = 2075295744. Its totient is φ = 1301706000.

The previous prime is 1650378997. The next prime is 1650379033. The reversal of 1650379025 is 5209730561.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-1650379025 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1650379025.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 463121 + ... + 466670.

It is an arithmetic number, because the mean of its divisors is an integer number (172941312).

Almost surely, 2^1650379025 is an apocalyptic number.

It is an amenable number.

1650379025 is a deficient number, since it is larger than the sum of its proper divisors (424916719).

1650379025 is an equidigital number, since it uses as much as digits as its factorization.

1650379025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929872 (or 929867 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 38.

The square root of 1650379025 is about 40624.8572305184. The cubic root of 1650379025 is about 1181.7562245222.

The spelling of 1650379025 in words is "one billion, six hundred fifty million, three hundred seventy-nine thousand, twenty-five".