2003555455 has 16 divisors (see below), whose sum is σ = 2624507424. Its totient is φ = 1456202880.

The previous prime is 2003555423. The next prime is 2003555497. The reversal of 2003555455 is 5545553002.

It is not a de Polignac number, because 2003555455 - 2⁵ = 2003555423 is a prime.

It is a super-2 number, since 2×2003555455² = 8028468922520514050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2003555455.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82357 + ... + 103873.

It is an arithmetic number, because the mean of its divisors is an integer number (164031714).

Almost surely, 2^2003555455 is an apocalyptic number.

2003555455 is a deficient number, since it is larger than the sum of its proper divisors (620951969).

2003555455 is a wasteful number, since it uses less digits than its factorization.

2003555455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23226.

The product of its (nonzero) digits is 75000, while the sum is 34.

The square root of 2003555455 is about 44761.0930943381. The cubic root of 2003555455 is about 1260.6672066810.

The spelling of 2003555455 in words is "two billion, three million, five hundred fifty-five thousand, four hundred fifty-five".