2150135550 has 48 divisors (see below), whose sum is σ = 5924821680. Its totient is φ = 573369120.

The previous prime is 2150135459. The next prime is 2150135557. The reversal of 2150135550 is 555310512.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2150135557) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 794997 + ... + 797696.

It is an arithmetic number, because the mean of its divisors is an integer number (123433785).

Almost surely, 2^2150135550 is an apocalyptic number.

2150135550 is an abundant number, since it is smaller than the sum of its proper divisors (3774686130).

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

2150135550 is a wasteful number, since it uses less digits than its factorization.

2150135550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1592714 (or 1592703 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The square root of 2150135550 is about 46369.5541276817. The cubic root of 2150135550 is about 1290.6900040348.

The spelling of 2150135550 in words is "two billion, one hundred fifty million, one hundred thirty-five thousand, five hundred fifty".