54156257 has 2 divisors, whose sum is σ = 54156258. Its totient is φ = 54156256.

The previous prime is 54156247. The next prime is 54156259. The reversal of 54156257 is 75265145.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46226401 + 7929856 = 6799^2 + 2816^2 .

It is a cyclic number.

It is not a de Polignac number, because 54156257 - 2¹⁶ = 54090721 is a prime.

Together with 54156259, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (54156259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27078128 + 27078129.

It is an arithmetic number, because the mean of its divisors is an integer number (27078129).

Almost surely, 2^54156257 is an apocalyptic number.

It is an amenable number.

54156257 is a deficient number, since it is larger than the sum of its proper divisors (1).

54156257 is an equidigital number, since it uses as much as digits as its factorization.

54156257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42000, while the sum is 35.

The square root of 54156257 is about 7359.0934903696. The cubic root of 54156257 is about 378.3405407016.

The spelling of 54156257 in words is "fifty-four million, one hundred fifty-six thousand, two hundred fifty-seven".