1555225253 has 8 divisors (see below), whose sum is σ = 1643086080. Its totient is φ = 1469646640.

The previous prime is 1555225237. The next prime is 1555225271. The reversal of 1555225253 is 3525225551.

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 1555225253 - 2⁴ = 1555225237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1555225223) by changing a digit.

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, 569153 + ... + 571878.

It is an arithmetic number, because the mean of its divisors is an integer number (205385760).

Almost surely, 2^1555225253 is an apocalyptic number.

It is an amenable number.

1555225253 is a deficient number, since it is larger than the sum of its proper divisors (87860827).

1555225253 is a wasteful number, since it uses less digits than its factorization.

1555225253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1141107.

The product of its digits is 75000, while the sum is 35.

The square root of 1555225253 is about 39436.3443158719. The cubic root of 1555225253 is about 1158.5935324556.

The spelling of 1555225253 in words is "one billion, five hundred fifty-five million, two hundred twenty-five thousand, two hundred fifty-three".