54431857 has 2 divisors, whose sum is σ = 54431858. Its totient is φ = 54431856.

The previous prime is 54431849. The next prime is 54431891. The reversal of 54431857 is 75813445.

54431857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50253921 + 4177936 = 7089^2 + 2044^2 .

It is a cyclic number.

It is not a de Polignac number, because 54431857 - 2³ = 54431849 is a prime.

It is not a weakly prime, because it can be changed into another prime (54431837) 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, 27215928 + 27215929.

It is an arithmetic number, because the mean of its divisors is an integer number (27215929).

Almost surely, 2^54431857 is an apocalyptic number.

It is an amenable number.

54431857 is a deficient number, since it is larger than the sum of its proper divisors (1).

54431857 is an equidigital number, since it uses as much as digits as its factorization.

54431857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 67200, while the sum is 37.

The square root of 54431857 is about 7377.7948602547. The cubic root of 54431857 is about 378.9812439810.

The spelling of 54431857 in words is "fifty-four million, four hundred thirty-one thousand, eight hundred fifty-seven".