6111055557 has 32 divisors (see below), whose sum is σ = 9569648000. Its totient is φ = 3843521280.

The previous prime is 6111055487. The next prime is 6111055591. The reversal of 6111055557 is 7555501116.

It is a happy number.

It is not a de Polignac number, because 6111055557 - 2⁷ = 6111055429 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 (6111055957) 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 31 ways as a sum of consecutive naturals, for example, 98919 + ... + 148347.

It is an arithmetic number, because the mean of its divisors is an integer number (299051500).

Almost surely, 2^6111055557 is an apocalyptic number.

It is an amenable number.

6111055557 is a deficient number, since it is larger than the sum of its proper divisors (3458592443).

6111055557 is a wasteful number, since it uses less digits than its factorization.

6111055557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49698 (or 49692 counting only the distinct ones).

The product of its (nonzero) digits is 26250, while the sum is 36.

The square root of 6111055557 is about 78173.2406709611. The cubic root of 6111055557 is about 1828.2633107295.

The spelling of 6111055557 in words is "six billion, one hundred eleven million, fifty-five thousand, five hundred fifty-seven".