1550006655 has 16 divisors (see below), whose sum is σ = 2532777984. Its totient is φ = 809081120.

The previous prime is 1550006651. The next prime is 1550006663. The reversal of 1550006655 is 5566000551.

It is not a de Polignac number, because 1550006655 - 2² = 1550006651 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1550006651) 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, 1098591 + ... + 1100000.

It is an arithmetic number, because the mean of its divisors is an integer number (158298624).

Almost surely, 2^1550006655 is an apocalyptic number.

1550006655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1550006655 is a deficient number, since it is larger than the sum of its proper divisors (982771329).

1550006655 is a wasteful number, since it uses less digits than its factorization.

1550006655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2198646.

The product of its (nonzero) digits is 22500, while the sum is 33.

The square root of 1550006655 is about 39370.1238885529. The cubic root of 1550006655 is about 1157.2961835606.

The spelling of 1550006655 in words is "one billion, five hundred fifty million, six thousand, six hundred fifty-five".