495596561 has 8 divisors (see below), whose sum is σ = 508680648. Its totient is φ = 482560000.

The previous prime is 495596531. The next prime is 495596567. The reversal of 495596561 is 165695594.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 33131536 + 462465025 = 5756^2 + 21505^2 .

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 495596561 - 2²² = 491402257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (495596567) 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, 9761 + ... + 32961.

It is an arithmetic number, because the mean of its divisors is an integer number (63585081).

Almost surely, 2^495596561 is an apocalyptic number.

495596561 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

495596561 is a deficient number, since it is larger than the sum of its proper divisors (13084087).

495596561 is a wasteful number, since it uses less digits than its factorization.

495596561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23763.

The product of its digits is 1458000, while the sum is 50.

The square root of 495596561 is about 22261.9981358368. The cubic root of 495596561 is about 791.3636443880.

The spelling of 495596561 in words is "four hundred ninety-five million, five hundred ninety-six thousand, five hundred sixty-one".