55561011546 has 16 divisors (see below), whose sum is σ = 111393720000. Its totient is φ = 18475054368.

The previous prime is 55561011533. The next prime is 55561011551. The reversal of 55561011546 is 64511016555.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11318046 + ... + 11322953.

It is an arithmetic number, because the mean of its divisors is an integer number (6962107500).

Almost surely, 2^55561011546 is an apocalyptic number.

55561011546 is an abundant number, since it is smaller than the sum of its proper divisors (55832708454).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55561011546 is a wasteful number, since it uses less digits than its factorization.

55561011546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22641413.

The product of its (nonzero) digits is 90000, while the sum is 39.

The spelling of 55561011546 in words is "fifty-five billion, five hundred sixty-one million, eleven thousand, five hundred forty-six".