1251580055 has 16 divisors (see below), whose sum is σ = 1640901024. Its totient is φ = 908868480.

The previous prime is 1251580051. The next prime is 1251580087. The reversal of 1251580055 is 5500851521.

1251580055 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1251580055 - 2² = 1251580051 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1251580051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20429 + ... + 54041.

It is an arithmetic number, because the mean of its divisors is an integer number (102556314).

Almost surely, 2^1251580055 is an apocalyptic number.

1251580055 is a deficient number, since it is larger than the sum of its proper divisors (389320969).

1251580055 is a wasteful number, since it uses less digits than its factorization.

1251580055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34306.

The product of its (nonzero) digits is 10000, while the sum is 32.

The square root of 1251580055 is about 35377.6773545127. The cubic root of 1251580055 is about 1077.6710372812.

The spelling of 1251580055 in words is "one billion, two hundred fifty-one million, five hundred eighty thousand, fifty-five".