55055550544 has 20 divisors (see below), whose sum is σ = 107510055424. Its totient is φ = 27311020128.

The previous prime is 55055550541. The next prime is 55055550551. The reversal of 55055550544 is 44505555055.

It is a super-2 number, since 2×55055550544² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55055550544.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55055550541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13545102 + ... + 13549165.

Almost surely, 2^55055550544 is an apocalyptic number.

It is an amenable number.

55055550544 is a deficient number, since it is larger than the sum of its proper divisors (52454504880).

55055550544 is a wasteful number, since it uses less digits than its factorization.

55055550544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27094402 (or 27094396 counting only the distinct ones).

The product of its (nonzero) digits is 1250000, while the sum is 43.

The spelling of 55055550544 in words is "fifty-five billion, fifty-five million, five hundred fifty thousand, five hundred forty-four".