55204861 has 8 divisors (see below), whose sum is σ = 58197600. Its totient is φ = 52220880.

The previous prime is 55204847. The next prime is 55204871. The reversal of 55204861 is 16840255.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55204861 - 2¹¹ = 55202813 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 (55204871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13830 + ... + 17368.

It is an arithmetic number, because the mean of its divisors is an integer number (7274700).

Almost surely, 2^55204861 is an apocalyptic number.

It is an amenable number.

55204861 is a deficient number, since it is larger than the sum of its proper divisors (2992739).

55204861 is a wasteful number, since it uses less digits than its factorization.

55204861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4379.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 55204861 is about 7429.9973755042. The cubic root of 55204861 is about 380.7668287145.

It can be divided in two parts, 55204 and 861, that added together give a palindrome (56065).

The spelling of 55204861 in words is "fifty-five million, two hundred four thousand, eight hundred sixty-one".