55506061 has 16 divisors (see below), whose sum is σ = 63254016. Its totient is φ = 48318336.

The previous prime is 55506047. The next prime is 55506097. The reversal of 55506061 is 16060555.

It is a cyclic number.

It is not a de Polignac number, because 55506061 - 2²¹ = 53408909 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 (55506361) 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, 20556 + ... + 23098.

It is an arithmetic number, because the mean of its divisors is an integer number (3953376).

Almost surely, 2^55506061 is an apocalyptic number.

It is an amenable number.

55506061 is a deficient number, since it is larger than the sum of its proper divisors (7747955).

55506061 is a wasteful number, since it uses less digits than its factorization.

55506061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2652.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 55506061 is about 7450.2389894553. The cubic root of 55506061 is about 381.4580662718.

It can be divided in two parts, 5550 and 6061, that added together give a palindrome (11611).

The spelling of 55506061 in words is "fifty-five million, five hundred six thousand, sixty-one".