2055440636 has 12 divisors (see below), whose sum is σ = 3597351912. Its totient is φ = 1027625808.

The previous prime is 2055440593. The next prime is 2055440663. The reversal of 2055440636 is 6360445502.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2055440596 and 2055440605.

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, 52706 + ... + 82998.

It is an arithmetic number, because the mean of its divisors is an integer number (299779326).

Almost surely, 2^2055440636 is an apocalyptic number.

It is an amenable number.

2055440636 is a deficient number, since it is larger than the sum of its proper divisors (1541911276).

2055440636 is a wasteful number, since it uses less digits than its factorization.

2055440636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47260 (or 47258 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 35.

The square root of 2055440636 is about 45336.9676533400. The cubic root of 2055440636 is about 1271.4569090587.

The spelling of 2055440636 in words is "two billion, fifty-five million, four hundred forty thousand, six hundred thirty-six".