55500550505497 has 16 divisors (see below), whose sum is σ = 57936792499200. Its totient is φ = 53104722865920.

The previous prime is 55500550505489. The next prime is 55500550505503. The reversal of 55500550505497 is 79450505500555.

It is not a de Polignac number, because 55500550505497 - 2³ = 55500550505489 is a prime.

It is a super-2 number, since 2×55500550505497² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55500550505467) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75587148 + ... + 76317874.

It is an arithmetic number, because the mean of its divisors is an integer number (3621049531200).

Almost surely, 2^{55500550505497} is an apocalyptic number.

It is an amenable number.

55500550505497 is a deficient number, since it is larger than the sum of its proper divisors (2436241993703).

55500550505497 is a wasteful number, since it uses less digits than its factorization.

55500550505497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758376.

The product of its (nonzero) digits is 19687500, while the sum is 55.

The spelling of 55500550505497 in words is "fifty-five trillion, five hundred billion, five hundred fifty million, five hundred five thousand, four hundred ninety-seven".