55605550501 has 4 divisors (see below), whose sum is σ = 55634053504. Its totient is φ = 55577047500.

The previous prime is 55605550477. The next prime is 55605550549. The reversal of 55605550501 is 10505550655.

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 not a de Polignac number, because 55605550501 - 2²⁷ = 55471332773 is a prime.

It is a super-2 number, since 2×55605550501² (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 (55605551501) 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, 14248575 + ... + 14252476.

It is an arithmetic number, because the mean of its divisors is an integer number (13908513376).

Almost surely, 2^55605550501 is an apocalyptic number.

It is an amenable number.

55605550501 is a deficient number, since it is larger than the sum of its proper divisors (28503003).

55605550501 is a wasteful number, since it uses less digits than its factorization.

55605550501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28503002.

The product of its (nonzero) digits is 93750, while the sum is 37.

The spelling of 55605550501 in words is "fifty-five billion, six hundred five million, five hundred fifty thousand, five hundred one".