1085554655 has 16 divisors (see below), whose sum is σ = 1340731200. Its totient is φ = 843167232.

The previous prime is 1085554649. The next prime is 1085554661. The reversal of 1085554655 is 5564555801.

It is an interprime number because it is at equal distance from previous prime (1085554649) and next prime (1085554661).

It is a cyclic number.

It is not a de Polignac number, because 1085554655 - 2²² = 1081360351 is a prime.

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, 84071 + ... + 96119.

It is an arithmetic number, because the mean of its divisors is an integer number (83795700).

Almost surely, 2^1085554655 is an apocalyptic number.

1085554655 is a deficient number, since it is larger than the sum of its proper divisors (255176545).

1085554655 is a wasteful number, since it uses less digits than its factorization.

1085554655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12578.

The product of its (nonzero) digits is 600000, while the sum is 44.

The square root of 1085554655 is about 32947.7564486567. The cubic root of 1085554655 is about 1027.7415103919.

The spelling of 1085554655 in words is "one billion, eighty-five million, five hundred fifty-four thousand, six hundred fifty-five".