1255559087 has 8 divisors (see below), whose sum is σ = 1277495040. Its totient is φ = 1233774360.

The previous prime is 1255559077. The next prime is 1255559093. The reversal of 1255559087 is 7809555521.

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 1255559087 - 2¹² = 1255554991 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 (1255559057) 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, 20993 + ... + 54330.

It is an arithmetic number, because the mean of its divisors is an integer number (159686880).

Almost surely, 2^1255559087 is an apocalyptic number.

1255559087 is a deficient number, since it is larger than the sum of its proper divisors (21935953).

1255559087 is an equidigital number, since it uses as much as digits as its factorization.

1255559087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75613.

The product of its (nonzero) digits is 630000, while the sum is 47.

The square root of 1255559087 is about 35433.8692072994. The cubic root of 1255559087 is about 1078.8118755615.

The spelling of 1255559087 in words is "one billion, two hundred fifty-five million, five hundred fifty-nine thousand, eighty-seven".