1253505055 has 32 divisors (see below), whose sum is σ = 1690191360. Its totient is φ = 884430720.

The previous prime is 1253505023. The next prime is 1253505061. The reversal of 1253505055 is 5505053521.

It is a happy number.

It is not a de Polignac number, because 1253505055 - 2⁵ = 1253505023 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 949686 + ... + 951004.

It is an arithmetic number, because the mean of its divisors is an integer number (52818480).

Almost surely, 2^1253505055 is an apocalyptic number.

1253505055 is a deficient number, since it is larger than the sum of its proper divisors (436686305).

1253505055 is a wasteful number, since it uses less digits than its factorization.

1253505055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1839.

The product of its (nonzero) digits is 18750, while the sum is 31.

The square root of 1253505055 is about 35404.8733227504. The cubic root of 1253505055 is about 1078.2232603350.

Adding to 1253505055 its reverse (5505053521), we get a palindrome (6758558576).

The spelling of 1253505055 in words is "one billion, two hundred fifty-three million, five hundred five thousand, fifty-five".