55500050559 has 4 divisors (see below), whose sum is σ = 74000067416. Its totient is φ = 37000033704.

The previous prime is 55500050549. The next prime is 55500050561. The reversal of 55500050559 is 95505000555.

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

It is not a de Polignac number, because 55500050559 - 2²⁴ = 55483273343 is a prime.

It is a super-2 number, since 2×55500050559² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55500050549) 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, 9250008424 + ... + 9250008429.

It is an arithmetic number, because the mean of its divisors is an integer number (18500016854).

Almost surely, 2^55500050559 is an apocalyptic number.

55500050559 is a deficient number, since it is larger than the sum of its proper divisors (18500016857).

55500050559 is a wasteful number, since it uses less digits than its factorization.

55500050559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18500016856.

The product of its (nonzero) digits is 140625, while the sum is 39.

The spelling of 55500050559 in words is "fifty-five billion, five hundred million, fifty thousand, five hundred fifty-nine".