54761009 has 4 divisors (see below), whose sum is σ = 54778980. Its totient is φ = 54743040.

The previous prime is 54760997. The next prime is 54761017. The reversal of 54761009 is 90016745.

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 42706225 + 12054784 = 6535^2 + 3472^2 .

It is a cyclic number.

It is not a de Polignac number, because 54761009 - 2²⁰ = 53712433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54761039) 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, 3152 + ... + 10929.

It is an arithmetic number, because the mean of its divisors is an integer number (13694745).

Almost surely, 2^54761009 is an apocalyptic number.

It is an amenable number.

54761009 is a deficient number, since it is larger than the sum of its proper divisors (17971).

54761009 is a wasteful number, since it uses less digits than its factorization.

54761009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17970.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 54761009 is about 7400.0681753616. The cubic root of 54761009 is about 379.7436151455.

The spelling of 54761009 in words is "fifty-four million, seven hundred sixty-one thousand, nine".