1555012253 has 8 divisors (see below), whose sum is σ = 1653319800. Its totient is φ = 1457464320.

The previous prime is 1555012247. The next prime is 1555012259. The reversal of 1555012253 is 3522105551.

It is an interprime number because it is at equal distance from previous prime (1555012247) and next prime (1555012259).

It can be written as a sum of positive squares in 4 ways, for example, as 307721764 + 1247290489 = 17542^2 + 35317^2 .

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 1555012253 - 2³⁰ = 481270429 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 (1555012259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185678 + ... + 193871.

It is an arithmetic number, because the mean of its divisors is an integer number (206664975).

Almost surely, 2^1555012253 is an apocalyptic number.

It is an amenable number.

1555012253 is a deficient number, since it is larger than the sum of its proper divisors (98307547).

1555012253 is a wasteful number, since it uses less digits than its factorization.

1555012253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379807.

The product of its (nonzero) digits is 7500, while the sum is 29.

The square root of 1555012253 is about 39433.6436688267. The cubic root of 1555012253 is about 1158.5406372906.

The spelling of 1555012253 in words is "one billion, five hundred fifty-five million, twelve thousand, two hundred fifty-three".