201804055 has 4 divisors (see below), whose sum is σ = 242164872. Its totient is φ = 161443240.

The previous prime is 201804049. The next prime is 201804061. The reversal of 201804055 is 550408102.

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

It is an interprime number because it is at equal distance from previous prime (201804049) and next prime (201804061).

It is not a de Polignac number, because 201804055 - 2⁵ = 201804023 is a prime.

It is a super-2 number, since 2×201804055² = 81449753228886050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20180401 + ... + 20180410.

It is an arithmetic number, because the mean of its divisors is an integer number (60541218).

Almost surely, 2^201804055 is an apocalyptic number.

201804055 is a deficient number, since it is larger than the sum of its proper divisors (40360817).

201804055 is an equidigital number, since it uses as much as digits as its factorization.

201804055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40360816.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 201804055 is about 14205.7754100225. The cubic root of 201804055 is about 586.5566499465.

It can be divided in two parts, 20180405 and 5, that multiplied together give a square (100902025 = 10045²).

The spelling of 201804055 in words is "two hundred one million, eight hundred four thousand, fifty-five".