1085557055 has 16 divisors (see below), whose sum is σ = 1423730304. Its totient is φ = 788030880.

The previous prime is 1085557043. The next prime is 1085557061. The reversal of 1085557055 is 5507555801.

It is a happy number.

It is not a de Polignac number, because 1085557055 - 2²⁶ = 1018448191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12044 + ... + 48126.

It is an arithmetic number, because the mean of its divisors is an integer number (88983144).

Almost surely, 2^1085557055 is an apocalyptic number.

1085557055 is a deficient number, since it is larger than the sum of its proper divisors (338173249).

1085557055 is a wasteful number, since it uses less digits than its factorization.

1085557055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36646.

The product of its (nonzero) digits is 175000, while the sum is 41.

The square root of 1085557055 is about 32947.7928699329. The cubic root of 1085557055 is about 1027.7422677859.

The spelling of 1085557055 in words is "one billion, eighty-five million, five hundred fifty-seven thousand, fifty-five".