544440123550 has 24 divisors (see below), whose sum is σ = 1013622246792. Its totient is φ = 217568820000.

The previous prime is 544440123481. The next prime is 544440123581. The reversal of 544440123550 is 55321044445.

It is a super-2 number, since 2×544440123550² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5127661 + ... + 5232760.

It is an arithmetic number, because the mean of its divisors is an integer number (42234260283).

Almost surely, 2^544440123550 is an apocalyptic number.

544440123550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

544440123550 is a deficient number, since it is larger than the sum of its proper divisors (469182123242).

544440123550 is a wasteful number, since it uses less digits than its factorization.

544440123550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10361484 (or 10361479 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 37.

Adding to 544440123550 its reverse (55321044445), we get a palindrome (599761167995).

The spelling of 544440123550 in words is "five hundred forty-four billion, four hundred forty million, one hundred twenty-three thousand, five hundred fifty".