55415004544 has 32 divisors (see below), whose sum is σ = 110408502600. Its totient is φ = 27704635392.

The previous prime is 55415004527. The next prime is 55415004569. The reversal of 55415004544 is 44540051455.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×55415004544² (a number of 22 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 3 ways as a sum of consecutive naturals, for example, 1790352 + ... + 1821040.

Almost surely, 2^55415004544 is an apocalyptic number.

It is an amenable number.

55415004544 is a deficient number, since it is larger than the sum of its proper divisors (54993498056).

55415004544 is a wasteful number, since it uses less digits than its factorization.

55415004544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44810 (or 44798 counting only the distinct ones).

The product of its (nonzero) digits is 160000, while the sum is 37.

Adding to 55415004544 its reverse (44540051455), we get a palindrome (99955055999).

The spelling of 55415004544 in words is "fifty-five billion, four hundred fifteen million, four thousand, five hundred forty-four".