54218051 has 2 divisors, whose sum is σ = 54218052. Its totient is φ = 54218050.

The previous prime is 54218029. The next prime is 54218057. The reversal of 54218051 is 15081245.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54218051 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54218051.

It is not a weakly prime, because it can be changed into another prime (54218057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27109025 + 27109026.

It is an arithmetic number, because the mean of its divisors is an integer number (27109026).

Almost surely, 2^54218051 is an apocalyptic number.

54218051 is a deficient number, since it is larger than the sum of its proper divisors (1).

54218051 is an equidigital number, since it uses as much as digits as its factorization.

54218051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1600, while the sum is 26.

The square root of 54218051 is about 7363.2907724739. The cubic root of 54218051 is about 378.4843855078.

Adding to 54218051 its reverse (15081245), we get a palindrome (69299296).

The spelling of 54218051 in words is "fifty-four million, two hundred eighteen thousand, fifty-one".