55505505500507 has 4 divisors (see below), whose sum is σ = 57005654297856. Its totient is φ = 54005356703160.

The previous prime is 55505505500503. The next prime is 55505505500519. The reversal of 55505505500507 is 70500550550555.

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 55505505500507 - 2² = 55505505500503 is a prime.

It is a super-2 number, since 2×55505505500507² (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 (55505505500503) 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, 750074398619 + ... + 750074398692.

It is an arithmetic number, because the mean of its divisors is an integer number (14251413574464).

Almost surely, 2^{55505505500507} is an apocalyptic number.

55505505500507 is a deficient number, since it is larger than the sum of its proper divisors (1500148797349).

55505505500507 is a wasteful number, since it uses less digits than its factorization.

55505505500507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500148797348.

The product of its (nonzero) digits is 2734375, while the sum is 47.

The spelling of 55505505500507 in words is "fifty-five trillion, five hundred five billion, five hundred five million, five hundred thousand, five hundred seven".