54315511 has 2 divisors, whose sum is σ = 54315512. Its totient is φ = 54315510.

The previous prime is 54315491. The next prime is 54315533. The reversal of 54315511 is 11551345.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54315511 - 2⁷ = 54315383 is a prime.

It is a super-3 number, since 3×54315511³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54315311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27157755 + 27157756.

It is an arithmetic number, because the mean of its divisors is an integer number (27157756).

Almost surely, 2^54315511 is an apocalyptic number.

54315511 is a deficient number, since it is larger than the sum of its proper divisors (1).

54315511 is an equidigital number, since it uses as much as digits as its factorization.

54315511 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1500, while the sum is 25.

The square root of 54315511 is about 7369.9057660190. The cubic root of 54315511 is about 378.7110320912.

Adding to 54315511 its reverse (11551345), we get a palindrome (65866856).

The spelling of 54315511 in words is "fifty-four million, three hundred fifteen thousand, five hundred eleven".