495654521 has 2 divisors, whose sum is σ = 495654522. Its totient is φ = 495654520.

The previous prime is 495654493. The next prime is 495654541. The reversal of 495654521 is 125456594.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 495552121 + 102400 = 22261^2 + 320^2 .

It is a cyclic number.

It is not a de Polignac number, because 495654521 - 2²⁶ = 428545657 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (495654541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247827260 + 247827261.

It is an arithmetic number, because the mean of its divisors is an integer number (247827261).

Almost surely, 2^495654521 is an apocalyptic number.

It is an amenable number.

495654521 is a deficient number, since it is larger than the sum of its proper divisors (1).

495654521 is an equidigital number, since it uses as much as digits as its factorization.

495654521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216000, while the sum is 41.

The square root of 495654521 is about 22263.2998677195. The cubic root of 495654521 is about 791.3944931687.

The spelling of 495654521 in words is "four hundred ninety-five million, six hundred fifty-four thousand, five hundred twenty-one".