54219871 has 2 divisors, whose sum is σ = 54219872. Its totient is φ = 54219870.

The previous prime is 54219859. The next prime is 54219877. The reversal of 54219871 is 17891245.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54219871 - 2¹³ = 54211679 is a prime.

It is a super-2 number, since 2×54219871² = 5879588822513282, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54219871.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54219877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27109935 + 27109936.

It is an arithmetic number, because the mean of its divisors is an integer number (27109936).

Almost surely, 2^54219871 is an apocalyptic number.

54219871 is a deficient number, since it is larger than the sum of its proper divisors (1).

54219871 is an equidigital number, since it uses as much as digits as its factorization.

54219871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 37.

The square root of 54219871 is about 7363.4143574839. The cubic root of 54219871 is about 378.4886204681.

The spelling of 54219871 in words is "fifty-four million, two hundred nineteen thousand, eight hundred seventy-one".