54321457 has 2 divisors, whose sum is σ = 54321458. Its totient is φ = 54321456.

The previous prime is 54321419. The next prime is 54321493. The reversal of 54321457 is 75412345.

54321457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51279921 + 3041536 = 7161^2 + 1744^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54321457 is a prime.

It is not a weakly prime, because it can be changed into another prime (54321257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27160728 + 27160729.

It is an arithmetic number, because the mean of its divisors is an integer number (27160729).

Almost surely, 2^54321457 is an apocalyptic number.

It is an amenable number.

54321457 is a deficient number, since it is larger than the sum of its proper divisors (1).

54321457 is an equidigital number, since it uses as much as digits as its factorization.

54321457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16800, while the sum is 31.

The square root of 54321457 is about 7370.3091522676. The cubic root of 54321457 is about 378.7248509408.

It can be divided in two parts, 5432 and 1457, that added together give a square (6889 = 83²).

The spelling of 54321457 in words is "fifty-four million, three hundred twenty-one thousand, four hundred fifty-seven".