505005551004 has 24 divisors (see below), whose sum is σ = 1178400455680. Its totient is φ = 168327445104.

The previous prime is 505005550999. The next prime is 505005551023. The reversal of 505005551004 is 400155500505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 692284 + ... + 1220355.

Almost surely, 2^505005551004 is an apocalyptic number.

It is an amenable number.

505005551004 is an abundant number, since it is smaller than the sum of its proper divisors (673394904676).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

505005551004 is a wasteful number, since it uses less digits than its factorization.

505005551004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1934649 (or 1934647 counting only the distinct ones).

The product of its (nonzero) digits is 12500, while the sum is 30.

The spelling of 505005551004 in words is "five hundred five billion, five million, five hundred fifty-one thousand, four".