495525781 has 2 divisors, whose sum is σ = 495525782. Its totient is φ = 495525780.

The previous prime is 495525749. The next prime is 495525787. The reversal of 495525781 is 187525594.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 481583025 + 13942756 = 21945^2 + 3734^2 .

It is a cyclic number.

It is not a de Polignac number, because 495525781 - 2⁵ = 495525749 is a prime.

It is a super-2 number, since 2×495525781² = 491091599271319922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (495525787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247762890 + 247762891.

It is an arithmetic number, because the mean of its divisors is an integer number (247762891).

Almost surely, 2^495525781 is an apocalyptic number.

It is an amenable number.

495525781 is a deficient number, since it is larger than the sum of its proper divisors (1).

495525781 is an equidigital number, since it uses as much as digits as its factorization.

495525781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 504000, while the sum is 46.

The square root of 495525781 is about 22260.4083745110. The cubic root of 495525781 is about 791.3259689951.

The spelling of 495525781 in words is "four hundred ninety-five million, five hundred twenty-five thousand, seven hundred eighty-one".