54554861 has 4 divisors (see below), whose sum is σ = 55584252. Its totient is φ = 53525472.

The previous prime is 54554849. The next prime is 54554891. The reversal of 54554861 is 16845545.

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 31696900 + 22857961 = 5630^2 + 4781^2 .

It is a cyclic number.

It is not a de Polignac number, because 54554861 - 2¹⁸ = 54292717 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 (54554891) 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, 514616 + ... + 514721.

It is an arithmetic number, because the mean of its divisors is an integer number (13896063).

Almost surely, 2^54554861 is an apocalyptic number.

It is an amenable number.

54554861 is a deficient number, since it is larger than the sum of its proper divisors (1029391).

54554861 is a wasteful number, since it uses less digits than its factorization.

54554861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029390.

The product of its digits is 96000, while the sum is 38.

The square root of 54554861 is about 7386.1262512903. The cubic root of 54554861 is about 379.2665005777.

The spelling of 54554861 in words is "fifty-four million, five hundred fifty-four thousand, eight hundred sixty-one".