1633213055 has 4 divisors (see below), whose sum is σ = 1959855672. Its totient is φ = 1306570440.

The previous prime is 1633213051. The next prime is 1633213061. The reversal of 1633213055 is 5503123361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5503123361 = 41 ⋅134222521.

It is not a de Polignac number, because 1633213055 - 2² = 1633213051 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 (1633213051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163321301 + ... + 163321310.

It is an arithmetic number, because the mean of its divisors is an integer number (489963918).

Almost surely, 2^1633213055 is an apocalyptic number.

1633213055 is a deficient number, since it is larger than the sum of its proper divisors (326642617).

1633213055 is an equidigital number, since it uses as much as digits as its factorization.

1633213055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326642616.

The product of its (nonzero) digits is 8100, while the sum is 29.

The square root of 1633213055 is about 40413.0307574178. The cubic root of 1633213055 is about 1177.6446974270.

The spelling of 1633213055 in words is "one billion, six hundred thirty-three million, two hundred thirteen thousand, fifty-five".