1251055055 has 16 divisors (see below), whose sum is σ = 1512276480. Its totient is φ = 993531648.

The previous prime is 1251055051. The next prime is 1251055067. The reversal of 1251055055 is 5505501521.

1251055055 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 1251055055 - 2² = 1251055051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1251055051) 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, 433106 + ... + 435984.

It is an arithmetic number, because the mean of its divisors is an integer number (94517280).

Almost surely, 2^1251055055 is an apocalyptic number.

1251055055 is a deficient number, since it is larger than the sum of its proper divisors (261221425).

1251055055 is a wasteful number, since it uses less digits than its factorization.

1251055055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3490.

The product of its (nonzero) digits is 6250, while the sum is 29.

The square root of 1251055055 is about 35370.2566431175. The cubic root of 1251055055 is about 1077.5203327325.

Adding to 1251055055 its reverse (5505501521), we get a palindrome (6756556576).

The spelling of 1251055055 in words is "one billion, two hundred fifty-one million, fifty-five thousand, fifty-five".