54942169 has 2 divisors, whose sum is σ = 54942170. Its totient is φ = 54942168.

The previous prime is 54942161. The next prime is 54942179. The reversal of 54942169 is 96124945.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49182169 + 5760000 = 7013^2 + 2400^2 .

It is a cyclic number.

It is not a de Polignac number, because 54942169 - 2³ = 54942161 is a prime.

It is a super-2 number, since 2×54942169² = 6037283868849122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (54942161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27471084 + 27471085.

It is an arithmetic number, because the mean of its divisors is an integer number (27471085).

Almost surely, 2^54942169 is an apocalyptic number.

It is an amenable number.

54942169 is a deficient number, since it is larger than the sum of its proper divisors (1).

54942169 is an equidigital number, since it uses as much as digits as its factorization.

54942169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 40.

The square root of 54942169 is about 7412.2984964180. The cubic root of 54942169 is about 380.1619093054.

The spelling of 54942169 in words is "fifty-four million, nine hundred forty-two thousand, one hundred sixty-nine".