1255038155 has 8 divisors (see below), whose sum is σ = 1721195232. Its totient is φ = 860597568.

The previous prime is 1255038151. The next prime is 1255038157. The reversal of 1255038155 is 5518305521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1255038155 - 2² = 1255038151 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 35858233 = 1255038155 / (1 + 2 + 5 + 5 + 0 + 3 + 8 + 1 + 5 + 5).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1255038151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17929082 + ... + 17929151.

It is an arithmetic number, because the mean of its divisors is an integer number (215149404).

Almost surely, 2^1255038155 is an apocalyptic number.

1255038155 is a deficient number, since it is larger than the sum of its proper divisors (466157077).

1255038155 is an equidigital number, since it uses as much as digits as its factorization.

1255038155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35858245.

The product of its (nonzero) digits is 30000, while the sum is 35.

The square root of 1255038155 is about 35426.5176809689. The cubic root of 1255038155 is about 1078.6626550868.

It can be divided in two parts, 12550 and 38155, that added together give a palindrome (50705).

The spelling of 1255038155 in words is "one billion, two hundred fifty-five million, thirty-eight thousand, one hundred fifty-five".