1650256555 has 16 divisors (see below), whose sum is σ = 2187964224. Its totient is φ = 1188520960.

The previous prime is 1650256549. The next prime is 1650256561. The reversal of 1650256555 is 5556520561.

It is an interprime number because it is at equal distance from previous prime (1650256549) and next prime (1650256561).

It is not a de Polignac number, because 1650256555 - 2⁷ = 1650256427 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 420106 + ... + 424015.

It is an arithmetic number, because the mean of its divisors is an integer number (136747764).

Almost surely, 2^1650256555 is an apocalyptic number.

1650256555 is a deficient number, since it is larger than the sum of its proper divisors (537707669).

1650256555 is a wasteful number, since it uses less digits than its factorization.

1650256555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844166.

The product of its (nonzero) digits is 225000, while the sum is 40.

The square root of 1650256555 is about 40623.3498741795. The cubic root of 1650256555 is about 1181.7269921938.

The spelling of 1650256555 in words is "one billion, six hundred fifty million, two hundred fifty-six thousand, five hundred fifty-five".