1255540122 has 16 divisors (see below), whose sum is σ = 2790089280. Its totient is φ = 418513356.

The previous prime is 1255540081. The next prime is 1255540133. The reversal of 1255540122 is 2210455521.

1255540122 is a `hidden beast` number, since 1 + 255 + 5 + 401 + 2 + 2 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11625318 + ... + 11625425.

It is an arithmetic number, because the mean of its divisors is an integer number (174380580).

Almost surely, 2^1255540122 is an apocalyptic number.

1255540122 is an abundant number, since it is smaller than the sum of its proper divisors (1534549158).

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

1255540122 is a wasteful number, since it uses less digits than its factorization.

1255540122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23250754 (or 23250748 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 1255540122 is about 35433.6015950961. The cubic root of 1255540122 is about 1078.8064437793.

Adding to 1255540122 its reverse (2210455521), we get a palindrome (3465995643).

The spelling of 1255540122 in words is "one billion, two hundred fifty-five million, five hundred forty thousand, one hundred twenty-two".