55427915543 has 32 divisors (see below), whose sum is σ = 75157673472. Its totient is φ = 39473424000.

The previous prime is 55427915537. The next prime is 55427915567. The reversal of 55427915543 is 34551972455.

It is a cyclic number.

It is not a de Polignac number, because 55427915543 - 2¹² = 55427911447 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55427915491 and 55427915500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55427915593) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 173021 + ... + 375222.

It is an arithmetic number, because the mean of its divisors is an integer number (2348677296).

Almost surely, 2^55427915543 is an apocalyptic number.

55427915543 is a deficient number, since it is larger than the sum of its proper divisors (19729757929).

55427915543 is a wasteful number, since it uses less digits than its factorization.

55427915543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548375.

The product of its digits is 3780000, while the sum is 50.

The spelling of 55427915543 in words is "fifty-five billion, four hundred twenty-seven million, nine hundred fifteen thousand, five hundred forty-three".