2055550 has 36 divisors (see below), whose sum is σ = 4452840. Its totient is φ = 703920.

The previous prime is 2055541. The next prime is 2055551. The reversal of 2055550 is 555502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2055551) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2031 + ... + 2869.

It is an arithmetic number, because the mean of its divisors is an integer number (123690).

2^2055550 is an apocalyptic number.

2055550 is an abundant number, since it is smaller than the sum of its proper divisors (2397290).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2055550 is a wasteful number, since it uses less digits than its factorization.

2055550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865 (or 853 counting only the distinct ones).

The product of its (nonzero) digits is 1250, while the sum is 22.

The square root of 2055550 is about 1433.7189403785. The cubic root of 2055550 is about 127.1479458830.

The spelling of 2055550 in words is "two million, fifty-five thousand, five hundred fifty".