2133550403 has 4 divisors (see below), whose sum is σ = 2226313488. Its totient is φ = 2040787320.

The previous prime is 2133550399. The next prime is 2133550421. The reversal of 2133550403 is 3040553312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2133550403 - 2² = 2133550399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2133550483) 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, 46381508 + ... + 46381553.

It is an arithmetic number, because the mean of its divisors is an integer number (556578372).

Almost surely, 2^2133550403 is an apocalyptic number.

2133550403 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2133550403 is a deficient number, since it is larger than the sum of its proper divisors (92763085).

2133550403 is an equidigital number, since it uses as much as digits as its factorization.

2133550403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92763084.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 2133550403 is about 46190.3713234696. The cubic root of 2133550403 is about 1287.3628401723.

The spelling of 2133550403 in words is "two billion, one hundred thirty-three million, five hundred fifty thousand, four hundred three".