2005550153 has 4 divisors (see below), whose sum is σ = 2005895808. Its totient is φ = 2005204500.

The previous prime is 2005550101. The next prime is 2005550167. The reversal of 2005550153 is 3510555002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2005550153 - 2⁶ = 2005550089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2005550753) 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, 163973 + ... + 175778.

It is an arithmetic number, because the mean of its divisors is an integer number (501473952).

Almost surely, 2^2005550153 is an apocalyptic number.

It is an amenable number.

2005550153 is a deficient number, since it is larger than the sum of its proper divisors (345655).

2005550153 is an equidigital number, since it uses as much as digits as its factorization.

2005550153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345654.

The product of its (nonzero) digits is 3750, while the sum is 26.

The square root of 2005550153 is about 44783.3691564179. The cubic root of 2005550153 is about 1261.0854325736.

The spelling of 2005550153 in words is "two billion, five million, five hundred fifty thousand, one hundred fifty-three".