55475538539 has 4 divisors (see below), whose sum is σ = 55994001624. Its totient is φ = 54957075456.

The previous prime is 55475538499. The next prime is 55475538563. The reversal of 55475538539 is 93583557455.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55475538539 - 2³² = 51180571243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55475528539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 259231382 + ... + 259231595.

It is an arithmetic number, because the mean of its divisors is an integer number (13998500406).

Almost surely, 2^55475538539 is an apocalyptic number.

55475538539 is a deficient number, since it is larger than the sum of its proper divisors (518463085).

55475538539 is a wasteful number, since it uses less digits than its factorization.

55475538539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518463084.

The product of its digits is 56700000, while the sum is 59.

The spelling of 55475538539 in words is "fifty-five billion, four hundred seventy-five million, five hundred thirty-eight thousand, five hundred thirty-nine".