54755309 has 4 divisors (see below), whose sum is σ = 62577504. Its totient is φ = 46933116.

The previous prime is 54755303. The next prime is 54755333. The reversal of 54755309 is 90355745.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 90355745 = 5 ⋅18071149.

It is a cyclic number.

It is not a de Polignac number, because 54755309 - 2⁴ = 54755293 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 (54755303) 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, 3911087 + ... + 3911100.

It is an arithmetic number, because the mean of its divisors is an integer number (15644376).

Almost surely, 2^54755309 is an apocalyptic number.

It is an amenable number.

54755309 is a deficient number, since it is larger than the sum of its proper divisors (7822195).

54755309 is an equidigital number, since it uses as much as digits as its factorization.

54755309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7822194.

The product of its (nonzero) digits is 94500, while the sum is 38.

The square root of 54755309 is about 7399.6830337522. The cubic root of 54755309 is about 379.7304390204.

The spelling of 54755309 in words is "fifty-four million, seven hundred fifty-five thousand, three hundred nine".