4990255565 has 32 divisors (see below), whose sum is σ = 6499823616. Its totient is φ = 3663313920.

The previous prime is 4990255553. The next prime is 4990255607. The reversal of 4990255565 is 5655520994.

It is a de Polignac number, because none of the positive numbers 2^k-4990255565 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2999924 + ... + 3001586.

It is an arithmetic number, because the mean of its divisors is an integer number (203119488).

Almost surely, 2^4990255565 is an apocalyptic number.

It is an amenable number.

4990255565 is a deficient number, since it is larger than the sum of its proper divisors (1509568051).

4990255565 is a wasteful number, since it uses less digits than its factorization.

4990255565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2549.

The product of its (nonzero) digits is 2430000, while the sum is 50.

The square root of 4990255565 is about 70641.7409539148. The cubic root of 4990255565 is about 1708.8643742897.

The spelling of 4990255565 in words is "four billion, nine hundred ninety million, two hundred fifty-five thousand, five hundred sixty-five".