55011061 has 16 divisors (see below), whose sum is σ = 67724800. Its totient is φ = 43627248.

The previous prime is 55011041. The next prime is 55011071. The reversal of 55011061 is 16011055.

It is not a de Polignac number, because 55011061 - 2⁵ = 55011029 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55011041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 910 + ... + 10528.

It is an arithmetic number, because the mean of its divisors is an integer number (4232800).

Almost surely, 2^55011061 is an apocalyptic number.

It is an amenable number.

55011061 is a deficient number, since it is larger than the sum of its proper divisors (12713739).

55011061 is a wasteful number, since it uses less digits than its factorization.

55011061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9688.

The product of its (nonzero) digits is 150, while the sum is 19.

The square root of 55011061 is about 7416.9441820739. The cubic root of 55011061 is about 380.3207379777.

It can be divided in two parts, 550 and 11061, that added together give a palindrome (11611).

The spelling of 55011061 in words is "fifty-five million, eleven thousand, sixty-one".