505955455 has 8 divisors (see below), whose sum is σ = 609456672. Its totient is φ = 403224288.

The previous prime is 505955447. The next prime is 505955497. The reversal of 505955455 is 554559505.

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 505955455 - 2³ = 505955447 is a prime.

It is a Duffinian number.

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, 191064 + ... + 193693.

It is an arithmetic number, because the mean of its divisors is an integer number (76182084).

Almost surely, 2^505955455 is an apocalyptic number.

505955455 is a deficient number, since it is larger than the sum of its proper divisors (103501217).

505955455 is a wasteful number, since it uses less digits than its factorization.

505955455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385025.

The product of its (nonzero) digits is 562500, while the sum is 43.

The square root of 505955455 is about 22493.4536032153. The cubic root of 505955455 is about 796.8393286198.

The spelling of 505955455 in words is "five hundred five million, nine hundred fifty-five thousand, four hundred fifty-five".