54582509 has 2 divisors, whose sum is σ = 54582510. Its totient is φ = 54582508.

The previous prime is 54582499. The next prime is 54582533. The reversal of 54582509 is 90528545.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31753225 + 22829284 = 5635^2 + 4778^2 .

It is a cyclic number.

It is not a de Polignac number, because 54582509 - 2¹² = 54578413 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54582589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27291254 + 27291255.

It is an arithmetic number, because the mean of its divisors is an integer number (27291255).

Almost surely, 2^54582509 is an apocalyptic number.

It is an amenable number.

54582509 is a deficient number, since it is larger than the sum of its proper divisors (1).

54582509 is an equidigital number, since it uses as much as digits as its factorization.

54582509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72000, while the sum is 38.

The square root of 54582509 is about 7387.9976312936. The cubic root of 54582509 is about 379.3305595763.

The spelling of 54582509 in words is "fifty-four million, five hundred eighty-two thousand, five hundred nine".