54071569 has 2 divisors, whose sum is σ = 54071570. Its totient is φ = 54071568.

The previous prime is 54071561. The next prime is 54071581. The reversal of 54071569 is 96517045.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47886400 + 6185169 = 6920^2 + 2487^2 .

It is a cyclic number.

It is not a de Polignac number, because 54071569 - 2³ = 54071561 is a prime.

It is a super-2 number, since 2×54071569² = 5847469148243522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (54071561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27035784 + 27035785.

It is an arithmetic number, because the mean of its divisors is an integer number (27035785).

Almost surely, 2^54071569 is an apocalyptic number.

It is an amenable number.

54071569 is a deficient number, since it is larger than the sum of its proper divisors (1).

54071569 is an equidigital number, since it uses as much as digits as its factorization.

54071569 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 54071569 is about 7353.3372695668. The cubic root of 54071569 is about 378.1432251216.

The spelling of 54071569 in words is "fifty-four million, seventy-one thousand, five hundred sixty-nine".