54156247 has 2 divisors, whose sum is σ = 54156248. Its totient is φ = 54156246.

The previous prime is 54156211. The next prime is 54156257. The reversal of 54156247 is 74265145.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54156247 - 2²³ = 45767639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54156257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27078123 + 27078124.

It is an arithmetic number, because the mean of its divisors is an integer number (27078124).

Almost surely, 2^54156247 is an apocalyptic number.

54156247 is a deficient number, since it is larger than the sum of its proper divisors (1).

54156247 is an equidigital number, since it uses as much as digits as its factorization.

54156247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 33600, while the sum is 34.

The square root of 54156247 is about 7359.0928109380. The cubic root of 54156247 is about 378.3405174146.

The spelling of 54156247 in words is "fifty-four million, one hundred fifty-six thousand, two hundred forty-seven".