54449557 has 2 divisors, whose sum is σ = 54449558. Its totient is φ = 54449556.

The previous prime is 54449539. The next prime is 54449587. The reversal of 54449557 is 75594445.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39012516 + 15437041 = 6246^2 + 3929^2 .

It is a cyclic number.

It is not a de Polignac number, because 54449557 - 2¹⁹ = 53925269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54449587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27224778 + 27224779.

It is an arithmetic number, because the mean of its divisors is an integer number (27224779).

Almost surely, 2^54449557 is an apocalyptic number.

It is an amenable number.

54449557 is a deficient number, since it is larger than the sum of its proper divisors (1).

54449557 is an equidigital number, since it uses as much as digits as its factorization.

54449557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 504000, while the sum is 43.

The square root of 54449557 is about 7378.9943081696. The cubic root of 54449557 is about 379.0223182184.

It can be divided in two parts, 5 and 4449557, that multiplied together give a triangular number (22247785 = T₆₆₇₀).

The spelling of 54449557 in words is "fifty-four million, four hundred forty-nine thousand, five hundred fifty-seven".