55046205561 has 8 divisors (see below), whose sum is σ = 74956535424. Its totient is φ = 35916673040.

The previous prime is 55046205527. The next prime is 55046205563. The reversal of 55046205561 is 16550264055.

It is a happy number.

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 55046205561 - 2²¹ = 55044108409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55046205563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195199170 + ... + 195199451.

It is an arithmetic number, because the mean of its divisors is an integer number (9369566928).

Almost surely, 2^55046205561 is an apocalyptic number.

It is an amenable number.

55046205561 is a deficient number, since it is larger than the sum of its proper divisors (19910329863).

55046205561 is a wasteful number, since it uses less digits than its factorization.

55046205561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390398671.

The product of its (nonzero) digits is 180000, while the sum is 39.

The spelling of 55046205561 in words is "fifty-five billion, forty-six million, two hundred five thousand, five hundred sixty-one".