495766251 has 20 divisors (see below), whose sum is σ = 741391200. Its totient is φ = 330152976.

The previous prime is 495766237. The next prime is 495766253. The reversal of 495766251 is 152667594.

It is a de Polignac number, because none of the positive numbers 2^k-495766251 is a prime.

It is a super-3 number, since 3×495766251³ (a number of 27 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 495766197 and 495766206.

It is not an unprimeable number, because it can be changed into a prime (495766253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 87070 + ... + 92588.

It is an arithmetic number, because the mean of its divisors is an integer number (37069560).

Almost surely, 2^495766251 is an apocalyptic number.

495766251 is a deficient number, since it is larger than the sum of its proper divisors (245624949).

495766251 is a wasteful number, since it uses less digits than its factorization.

495766251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6640 (or 6631 counting only the distinct ones).

The product of its digits is 453600, while the sum is 45.

The square root of 495766251 is about 22265.8090129238. The cubic root of 495766251 is about 791.4539538480.

The spelling of 495766251 in words is "four hundred ninety-five million, seven hundred sixty-six thousand, two hundred fifty-one".