611090055 has 16 divisors (see below), whose sum is σ = 1086382560. Its totient is φ = 325914624.

The previous prime is 611090047. The next prime is 611090089. The reversal of 611090055 is 550090116.

It is not a de Polignac number, because 611090055 - 2³ = 611090047 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 2263162 + ... + 2263431.

It is an arithmetic number, because the mean of its divisors is an integer number (67898910).

Almost surely, 2^611090055 is an apocalyptic number.

611090055 is a deficient number, since it is larger than the sum of its proper divisors (475292505).

611090055 is a wasteful number, since it uses less digits than its factorization.

611090055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4526607 (or 4526601 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 27.

The square root of 611090055 is about 24720.2357391672. The cubic root of 611090055 is about 848.5974817820.

The spelling of 611090055 in words is "six hundred eleven million, ninety thousand, fifty-five".