495532021 has 2 divisors, whose sum is σ = 495532022. Its totient is φ = 495532020.

The previous prime is 495531983. The next prime is 495532049. The reversal of 495532021 is 120235594.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 285136996 + 210395025 = 16886^2 + 14505^2 .

It is a cyclic number.

It is not a de Polignac number, because 495532021 - 2⁷ = 495531893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (495532061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247766010 + 247766011.

It is an arithmetic number, because the mean of its divisors is an integer number (247766011).

Almost surely, 2^495532021 is an apocalyptic number.

It is an amenable number.

495532021 is a deficient number, since it is larger than the sum of its proper divisors (1).

495532021 is an equidigital number, since it uses as much as digits as its factorization.

495532021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 495532021 is about 22260.5485332235. The cubic root of 495532021 is about 791.3292906206.

The spelling of 495532021 in words is "four hundred ninety-five million, five hundred thirty-two thousand, twenty-one".