495778001 has 8 divisors (see below), whose sum is σ = 522398400. Its totient is φ = 469210320.

The previous prime is 495777977. The next prime is 495778013. The reversal of 495778001 is 100877594.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 495778001 - 2⁶ = 495777937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 495778001.

It is not an unprimeable number, because it can be changed into a prime (495778051) 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, 6935 + ... + 32243.

It is an arithmetic number, because the mean of its divisors is an integer number (65299800).

Almost surely, 2^495778001 is an apocalyptic number.

It is an amenable number.

495778001 is a deficient number, since it is larger than the sum of its proper divisors (26620399).

495778001 is a wasteful number, since it uses less digits than its factorization.

495778001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26359.

The product of its (nonzero) digits is 70560, while the sum is 41.

The square root of 495778001 is about 22266.0728688289. The cubic root of 495778001 is about 791.4602064656.

The spelling of 495778001 in words is "four hundred ninety-five million, seven hundred seventy-eight thousand, one".