1200650055 has 32 divisors (see below), whose sum is σ = 2098027008. Its totient is φ = 581481600.

The previous prime is 1200650047. The next prime is 1200650093. The reversal of 1200650055 is 5500560021.

It is not a de Polignac number, because 1200650055 - 2³ = 1200650047 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 164902 + ... + 172028.

It is an arithmetic number, because the mean of its divisors is an integer number (65563344).

Almost surely, 2^1200650055 is an apocalyptic number.

1200650055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1200650055 is a deficient number, since it is larger than the sum of its proper divisors (897376953).

1200650055 is a wasteful number, since it uses less digits than its factorization.

1200650055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8167.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 1200650055 is about 34650.3976167662. The cubic root of 1200650055 is about 1062.8504196876.

The spelling of 1200650055 in words is "one billion, two hundred million, six hundred fifty thousand, fifty-five".