1253890055 has 16 divisors (see below), whose sum is σ = 1642806144. Its totient is φ = 911170080.

The previous prime is 1253890039. The next prime is 1253890061. The reversal of 1253890055 is 5500983521.

It is not a de Polignac number, because 1253890055 - 2⁴ = 1253890039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63164 + ... + 80606.

It is an arithmetic number, because the mean of its divisors is an integer number (102675384).

Almost surely, 2^1253890055 is an apocalyptic number.

1253890055 is a deficient number, since it is larger than the sum of its proper divisors (388916089).

1253890055 is a wasteful number, since it uses less digits than its factorization.

1253890055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18766.

The product of its (nonzero) digits is 54000, while the sum is 38.

The square root of 1253890055 is about 35410.3100099392. The cubic root of 1253890055 is about 1078.3336370906. Note that the first 3 decimals are identical.

The spelling of 1253890055 in words is "one billion, two hundred fifty-three million, eight hundred ninety thousand, fifty-five".