1255560351 has 8 divisors (see below), whose sum is σ = 1695271680. Its totient is φ = 826444632.

The previous prime is 1255560329. The next prime is 1255560359. The reversal of 1255560351 is 1530655521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1255560351 - 2¹³ = 1255552159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255560359) 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, 2648625 + ... + 2649098.

It is an arithmetic number, because the mean of its divisors is an integer number (211908960).

Almost surely, 2^1255560351 is an apocalyptic number.

1255560351 is a deficient number, since it is larger than the sum of its proper divisors (439711329).

1255560351 is an equidigital number, since it uses as much as digits as its factorization.

1255560351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5297805.

The product of its (nonzero) digits is 22500, while the sum is 33.

The square root of 1255560351 is about 35433.8870433375. The cubic root of 1255560351 is about 1078.8122375828.

The spelling of 1255560351 in words is "one billion, two hundred fifty-five million, five hundred sixty thousand, three hundred fifty-one".