505380654 has 32 divisors (see below), whose sum is σ = 1124180640. Its totient is φ = 168293376.

The previous prime is 505380649. The next prime is 505380661. The reversal of 505380654 is 456083505.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58204 + ... + 66320.

It is an arithmetic number, because the mean of its divisors is an integer number (35130645).

Almost surely, 2^505380654 is an apocalyptic number.

505380654 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

505380654 is an abundant number, since it is smaller than the sum of its proper divisors (618799986).

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

505380654 is a wasteful number, since it uses less digits than its factorization.

505380654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9281 (or 9275 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 505380654 is about 22480.6728991816. The cubic root of 505380654 is about 796.5374590928.

The spelling of 505380654 in words is "five hundred five million, three hundred eighty thousand, six hundred fifty-four".