2055405503 has 4 divisors (see below), whose sum is σ = 2163584760. Its totient is φ = 1947226248.

The previous prime is 2055405491. The next prime is 2055405509. The reversal of 2055405503 is 3055045502.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3055045502 = 2 ⋅1527522751.

It is not a de Polignac number, because 2055405503 - 2⁴ = 2055405487 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 (2055405509) 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, 54089600 + ... + 54089637.

It is an arithmetic number, because the mean of its divisors is an integer number (540896190).

Almost surely, 2^2055405503 is an apocalyptic number.

2055405503 is a deficient number, since it is larger than the sum of its proper divisors (108179257).

2055405503 is a wasteful number, since it uses less digits than its factorization.

2055405503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108179256.

The product of its (nonzero) digits is 15000, while the sum is 29.

The square root of 2055405503 is about 45336.5801864234. The cubic root of 2055405503 is about 1271.4496648132.

The spelling of 2055405503 in words is "two billion, fifty-five million, four hundred five thousand, five hundred three".