400500555505 has 8 divisors (see below), whose sum is σ = 490826212992. Its totient is φ = 313583413488.

The previous prime is 400500555491. The next prime is 400500555517. The reversal of 400500555505 is 505555005004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 400500555505 - 2¹³ = 400500547313 is a prime.

It is a Duffinian 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, 852128607 + ... + 852129076.

It is an arithmetic number, because the mean of its divisors is an integer number (61353276624).

Almost surely, 2^400500555505 is an apocalyptic number.

It is an amenable number.

400500555505 is a deficient number, since it is larger than the sum of its proper divisors (90325657487).

400500555505 is a wasteful number, since it uses less digits than its factorization.

400500555505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1704257735.

The product of its (nonzero) digits is 62500, while the sum is 34.

The spelling of 400500555505 in words is "four hundred billion, five hundred million, five hundred fifty-five thousand, five hundred five".