1955211033 has 8 divisors (see below), whose sum is σ = 2619304096. Its totient is φ = 1297296000.

The previous prime is 1955211029. The next prime is 1955211043. The reversal of 1955211033 is 3301125591.

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

It is not a de Polignac number, because 1955211033 - 2² = 1955211029 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1955211043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1543768 + ... + 1545033.

It is an arithmetic number, because the mean of its divisors is an integer number (327413012).

Almost surely, 2^1955211033 is an apocalyptic number.

It is an amenable number.

1955211033 is a deficient number, since it is larger than the sum of its proper divisors (664093063).

1955211033 is a wasteful number, since it uses less digits than its factorization.

1955211033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3089015.

The product of its (nonzero) digits is 4050, while the sum is 30.

The square root of 1955211033 is about 44217.7682951096. The cubic root of 1955211033 is about 1250.4448620328. Note that the first 3 decimals are identical.

The spelling of 1955211033 in words is "one billion, nine hundred fifty-five million, two hundred eleven thousand, thirty-three".