495841261 has 4 divisors (see below), whose sum is σ = 525008412. Its totient is φ = 466674112.

The previous prime is 495841231. The next prime is 495841301. The reversal of 495841261 is 162148594.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 188540361 + 307300900 = 13731^2 + 17530^2 .

It is a cyclic number.

It is not a de Polignac number, because 495841261 - 2¹¹ = 495839213 is a prime.

It is a super-2 number, since 2×495841261² = 491717112220140242, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (495841231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14583550 + ... + 14583583.

It is an arithmetic number, because the mean of its divisors is an integer number (131252103).

Almost surely, 2^495841261 is an apocalyptic number.

It is an amenable number.

495841261 is a deficient number, since it is larger than the sum of its proper divisors (29167151).

495841261 is a wasteful number, since it uses less digits than its factorization.

495841261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29167150.

The product of its digits is 69120, while the sum is 40.

The square root of 495841261 is about 22267.4933703819. The cubic root of 495841261 is about 791.4938677974.

The spelling of 495841261 in words is "four hundred ninety-five million, eight hundred forty-one thousand, two hundred sixty-one".