492509505 has 8 divisors (see below), whose sum is σ = 788015232. Its totient is φ = 262671728.

The previous prime is 492509503. The next prime is 492509509. The reversal of 492509505 is 505905294.

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 492509505 - 2¹ = 492509503 is a prime.

It is a super-2 number, since 2×492509505² = 485131225030690050, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (492509503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16416969 + ... + 16416998.

It is an arithmetic number, because the mean of its divisors is an integer number (98501904).

Almost surely, 2^492509505 is an apocalyptic number.

It is an amenable number.

492509505 is a deficient number, since it is larger than the sum of its proper divisors (295505727).

492509505 is a wasteful number, since it uses less digits than its factorization.

492509505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32833975.

The product of its (nonzero) digits is 81000, while the sum is 39.

The square root of 492509505 is about 22192.5551705972. Note that the first 3 decimals coincide. The cubic root of 492509505 is about 789.7170941291.

The spelling of 492509505 in words is "four hundred ninety-two million, five hundred nine thousand, five hundred five".