54444649 has 16 divisors (see below), whose sum is σ = 65975296. Its totient is φ = 43934400.

The previous prime is 54444623. The next prime is 54444653. The reversal of 54444649 is 94644445.

It is a cyclic number.

It is not a de Polignac number, because 54444649 - 2¹³ = 54436457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54442649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4639 + ... + 11419.

It is an arithmetic number, because the mean of its divisors is an integer number (4123456).

Almost surely, 2^54444649 is an apocalyptic number.

It is an amenable number.

54444649 is a deficient number, since it is larger than the sum of its proper divisors (11530647).

54444649 is a wasteful number, since it uses less digits than its factorization.

54444649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6856.

The product of its digits is 276480, while the sum is 40.

The square root of 54444649 is about 7378.6617350303. The cubic root of 54444649 is about 379.0109297117.

The spelling of 54444649 in words is "fifty-four million, four hundred forty-four thousand, six hundred forty-nine".