1253044555 has 32 divisors (see below), whose sum is σ = 1738915200. Its totient is φ = 849070080.

The previous prime is 1253044451. The next prime is 1253044589. The reversal of 1253044555 is 5554403521.

It is not a de Polignac number, because 1253044555 - 2¹⁷ = 1252913483 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1253044555.

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, 1256317 + ... + 1257313.

It is an arithmetic number, because the mean of its divisors is an integer number (54341100).

Almost surely, 2^1253044555 is an apocalyptic number.

1253044555 is a deficient number, since it is larger than the sum of its proper divisors (485870645).

1253044555 is a wasteful number, since it uses less digits than its factorization.

1253044555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1399.

The product of its (nonzero) digits is 60000, while the sum is 34.

The square root of 1253044555 is about 35398.3693833487. The cubic root of 1253044555 is about 1078.0912085803.

The spelling of 1253044555 in words is "one billion, two hundred fifty-three million, forty-four thousand, five hundred fifty-five".