1955045999 has 8 divisors (see below), whose sum is σ = 1962685200. Its totient is φ = 1947419136.

The previous prime is 1955045971. The next prime is 1955046011. The reversal of 1955045999 is 9995405591.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1955045999 - 2¹² = 1955041903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1955045959) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 422432 + ... + 427034.

It is an arithmetic number, because the mean of its divisors is an integer number (245335650).

Almost surely, 2^1955045999 is an apocalyptic number.

1955045999 is a deficient number, since it is larger than the sum of its proper divisors (7639201).

1955045999 is a wasteful number, since it uses less digits than its factorization.

1955045999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6169.

The product of its (nonzero) digits is 3280500, while the sum is 56.

The square root of 1955045999 is about 44215.9021054643. The cubic root of 1955045999 is about 1250.4096788359.

The spelling of 1955045999 in words is "one billion, nine hundred fifty-five million, forty-five thousand, nine hundred ninety-nine".