55142405044 has 6 divisors (see below), whose sum is σ = 96499208834. Its totient is φ = 27571202520.

The previous prime is 55142405041. The next prime is 55142405053. The reversal of 55142405044 is 44050424155.

It can be written as a sum of positive squares in only one way, i.e., 28069651600 + 27072753444 = 167540^2 + 164538^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55142405041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6892800627 + ... + 6892800634.

Almost surely, 2^55142405044 is an apocalyptic number.

It is an amenable number.

55142405044 is a deficient number, since it is larger than the sum of its proper divisors (41356803790).

55142405044 is a wasteful number, since it uses less digits than its factorization.

55142405044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13785601265 (or 13785601263 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 34.

Adding to 55142405044 its reverse (44050424155), we get a palindrome (99192829199).

The spelling of 55142405044 in words is "fifty-five billion, one hundred forty-two million, four hundred five thousand, forty-four".