54551947 has 2 divisors, whose sum is σ = 54551948. Its totient is φ = 54551946.

The previous prime is 54551941. The next prime is 54551953. The reversal of 54551947 is 74915545.

It is a balanced prime because it is at equal distance from previous prime (54551941) and next prime (54551953).

It is a cyclic number.

It is not a de Polignac number, because 54551947 - 2²³ = 46163339 is a prime.

It is not a weakly prime, because it can be changed into another prime (54551941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27275973 + 27275974.

It is an arithmetic number, because the mean of its divisors is an integer number (27275974).

Almost surely, 2^54551947 is an apocalyptic number.

54551947 is a deficient number, since it is larger than the sum of its proper divisors (1).

54551947 is an equidigital number, since it uses as much as digits as its factorization.

54551947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 126000, while the sum is 40.

The square root of 54551947 is about 7385.9289869318. The cubic root of 54551947 is about 379.2597477284.

The spelling of 54551947 in words is "fifty-four million, five hundred fifty-one thousand, nine hundred forty-seven".