1253473555 has 8 divisors (see below), whose sum is σ = 1504702800. Its totient is φ = 1002422496.

The previous prime is 1253473549. The next prime is 1253473579. The reversal of 1253473555 is 5553743521.

It is a happy number.

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 1253473555 - 2⁵ = 1253473523 is a prime.

It is an unprimeable number.

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, 28545 + ... + 57634.

It is an arithmetic number, because the mean of its divisors is an integer number (188087850).

Almost surely, 2^1253473555 is an apocalyptic number.

1253473555 is a deficient number, since it is larger than the sum of its proper divisors (251229245).

1253473555 is an equidigital number, since it uses as much as digits as its factorization.

1253473555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89093.

The product of its digits is 315000, while the sum is 40.

The square root of 1253473555 is about 35404.4284659419. The cubic root of 1253473555 is about 1078.2142285094.

The spelling of 1253473555 in words is "one billion, two hundred fifty-three million, four hundred seventy-three thousand, five hundred fifty-five".