55500055505497 has 4 divisors (see below), whose sum is σ = 55500660126976. Its totient is φ = 55499450884020.

The previous prime is 55500055505491. The next prime is 55500055505527. The reversal of 55500055505497 is 79450555000555.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55500055505497 is a prime.

It is a super-2 number, since 2×55500055505497² (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 (55500055505491) 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, 302173029 + ... + 302356642.

It is an arithmetic number, because the mean of its divisors is an integer number (13875165031744).

Almost surely, 2^{55500055505497} is an apocalyptic number.

It is an amenable number.

55500055505497 is a deficient number, since it is larger than the sum of its proper divisors (604621479).

55500055505497 is an equidigital number, since it uses as much as digits as its factorization.

55500055505497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604621478.

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

The spelling of 55500055505497 in words is "fifty-five trillion, five hundred billion, fifty-five million, five hundred five thousand, four hundred ninety-seven".