505545540404 has 24 divisors (see below), whose sum is σ = 902122131456. Its totient is φ = 247835700000.

The previous prime is 505545540403. The next prime is 505545540407. The reversal of 505545540404 is 404045545505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505545540403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4865972 + ... + 4968779.

It is an arithmetic number, because the mean of its divisors is an integer number (37588422144).

Almost surely, 2^505545540404 is an apocalyptic number.

It is an amenable number.

505545540404 is a deficient number, since it is larger than the sum of its proper divisors (396576591052).

505545540404 is a wasteful number, since it uses less digits than its factorization.

505545540404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9835007 (or 9835005 counting only the distinct ones).

The product of its (nonzero) digits is 800000, while the sum is 41.

The spelling of 505545540404 in words is "five hundred five billion, five hundred forty-five million, five hundred forty thousand, four hundred four".