54335509 has 2 divisors, whose sum is σ = 54335510. Its totient is φ = 54335508.

The previous prime is 54335471. The next prime is 54335527. The reversal of 54335509 is 90553345.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37088100 + 17247409 = 6090^2 + 4153^2 .

It is a cyclic number.

It is not a de Polignac number, because 54335509 - 2⁹ = 54334997 is a prime.

It is equal to p_3244993 and since 54335509 and 3244993 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54335609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27167754 + 27167755.

It is an arithmetic number, because the mean of its divisors is an integer number (27167755).

Almost surely, 2^54335509 is an apocalyptic number.

It is an amenable number.

54335509 is a deficient number, since it is larger than the sum of its proper divisors (1).

54335509 is an equidigital number, since it uses as much as digits as its factorization.

54335509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40500, while the sum is 34.

The square root of 54335509 is about 7371.2623749260. The cubic root of 54335509 is about 378.7575045985.

The spelling of 54335509 in words is "fifty-four million, three hundred thirty-five thousand, five hundred nine".