54444990 has 32 divisors (see below), whose sum is σ = 134885376. Its totient is φ = 14050080.

The previous prime is 54444989. The next prime is 54445057. The reversal of 54444990 is 9944445.

It is a super-2 number, since 2×54444990² = 5928513872200200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28342 + ... + 30201.

It is an arithmetic number, because the mean of its divisors is an integer number (4215168).

Almost surely, 2^54444990 is an apocalyptic number.

54444990 is an abundant number, since it is smaller than the sum of its proper divisors (80440386).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54444990 is a wasteful number, since it uses less digits than its factorization.

54444990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58584.

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 54444990 is about 7378.6848421653. The cubic root of 54444990 is about 379.0117209891.

The spelling of 54444990 in words is "fifty-four million, four hundred forty-four thousand, nine hundred ninety".