1802400055 has 16 divisors (see below), whose sum is σ = 2223711360. Its totient is φ = 1401449472.

The previous prime is 1802400053. The next prime is 1802400077. The reversal of 1802400055 is 5500042081.

It is a cyclic number.

It is not a de Polignac number, because 1802400055 - 2¹ = 1802400053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1802400053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187527 + ... + 196903.

It is an arithmetic number, because the mean of its divisors is an integer number (138981960).

Almost surely, 2^1802400055 is an apocalyptic number.

1802400055 is a deficient number, since it is larger than the sum of its proper divisors (421311305).

1802400055 is a wasteful number, since it uses less digits than its factorization.

1802400055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10458.

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

The square root of 1802400055 is about 42454.6823683796. The cubic root of 1802400055 is about 1216.9808115640.

The spelling of 1802400055 in words is "one billion, eight hundred two million, four hundred thousand, fifty-five".