54555034561 has 4 divisors (see below), whose sum is σ = 54570272724. Its totient is φ = 54539796400.

The previous prime is 54555034511. The next prime is 54555034627. The reversal of 54555034561 is 16543055545.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19218554161 + 35336480400 = 138631^2 + 187980^2 .

It is a cyclic number.

It is not a de Polignac number, because 54555034561 - 2¹⁷ = 54554903489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54555034511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7613710 + ... + 7620871.

It is an arithmetic number, because the mean of its divisors is an integer number (13642568181).

Almost surely, 2^54555034561 is an apocalyptic number.

It is an amenable number.

54555034561 is a deficient number, since it is larger than the sum of its proper divisors (15238163).

54555034561 is a wasteful number, since it uses less digits than its factorization.

54555034561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15238162.

The product of its (nonzero) digits is 900000, while the sum is 43.

The spelling of 54555034561 in words is "fifty-four billion, five hundred fifty-five million, thirty-four thousand, five hundred sixty-one".