505780190 has 64 divisors (see below), whose sum is σ = 1012746240. Its totient is φ = 181077120.

The previous prime is 505780153. The next prime is 505780229. The reversal of 505780190 is 91087505.

It is a super-2 number, since 2×505780190² = 511627201192872200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 505780190.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 252272 + ... + 254268.

It is an arithmetic number, because the mean of its divisors is an integer number (15824160).

Almost surely, 2^505780190 is an apocalyptic number.

505780190 is an abundant number, since it is smaller than the sum of its proper divisors (506966050).

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

505780190 is a wasteful number, since it uses less digits than its factorization.

505780190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2097.

The product of its (nonzero) digits is 12600, while the sum is 35.

The square root of 505780190 is about 22489.5573544701. The cubic root of 505780190 is about 796.7473085466.

The spelling of 505780190 in words is "five hundred five million, seven hundred eighty thousand, one hundred ninety".