54547003809 has 27 divisors (see below), whose sum is σ = 79545159603. Its totient is φ = 36019477872.

The previous prime is 54547003747. The next prime is 54547003831. The reversal of 54547003809 is 90830074545.

The square root of 54547003809 is 233553.

It is a perfect power (a square), and thus also a powerful number.

54547003809 is a `hidden beast` number, since 545 + 4 + 70 + 0 + 38 + 0 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 177822225 + 54369181584 = 13335^2 + 233172^2 .

It is not a de Polignac number, because 54547003809 - 2²⁷ = 54412786081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54547001809) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 88983387 + ... + 88983999.

Almost surely, 2^54547003809 is an apocalyptic number.

54547003809 is the 233553-rd square number.

54547003809 is the 116777-th centered octagonal number.

It is an amenable number.

54547003809 is a deficient number, since it is larger than the sum of its proper divisors (24998155794).

54547003809 is an frugal number, since it uses more digits than its factorization.

54547003809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1486 (or 743 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The spelling of 54547003809 in words is "fifty-four billion, five hundred forty-seven million, three thousand, eight hundred nine".