505212635256 has 48 divisors (see below), whose sum is σ = 1469240830440. Its totient is φ = 144346466880.

The previous prime is 505212635209. The next prime is 505212635261. The reversal of 505212635256 is 652536212505.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 214800115 + ... + 214802466.

Almost surely, 2^505212635256 is an apocalyptic number.

505212635256 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

505212635256 is an abundant number, since it is smaller than the sum of its proper divisors (964028195184).

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

505212635256 is a wasteful number, since it uses less digits than its factorization.

505212635256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429602604 (or 429602593 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 42.

The spelling of 505212635256 in words is "five hundred five billion, two hundred twelve million, six hundred thirty-five thousand, two hundred fifty-six".