505092090 has 16 divisors (see below), whose sum is σ = 1212221088. Its totient is φ = 134691216.

The previous prime is 505092059. The next prime is 505092103. The reversal of 505092090 is 90290505.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 16836403 = 505092090 / (5 + 0 + 5 + 0 + 9 + 2 + 0 + 9 + 0).

It is a Curzon 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, 8418172 + ... + 8418231.

It is an arithmetic number, because the mean of its divisors is an integer number (75763818).

Almost surely, 2^505092090 is an apocalyptic number.

505092090 is an abundant number, since it is smaller than the sum of its proper divisors (707128998).

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

505092090 is a wasteful number, since it uses less digits than its factorization.

505092090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16836413.

The product of its (nonzero) digits is 4050, while the sum is 30.

The square root of 505092090 is about 22474.2539364491. The cubic root of 505092090 is about 796.3858269883.

The spelling of 505092090 in words is "five hundred five million, ninety-two thousand, ninety".