493552021 has 8 divisors (see below), whose sum is σ = 500120280. Its totient is φ = 487022592.

The previous prime is 493552013. The next prime is 493552043. The reversal of 493552021 is 120255394.

It can be written as a sum of positive squares in 4 ways, for example, as 45796 + 493506225 = 214^2 + 22215^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 493552021 - 2³ = 493552013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (493552061) 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, 16341 + ... + 35413.

It is an arithmetic number, because the mean of its divisors is an integer number (62515035).

Almost surely, 2^493552021 is an apocalyptic number.

It is an amenable number.

493552021 is a deficient number, since it is larger than the sum of its proper divisors (6568259).

493552021 is a wasteful number, since it uses less digits than its factorization.

493552021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19415.

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

The square root of 493552021 is about 22216.0307210807. The cubic root of 493552021 is about 790.2739107863.

The spelling of 493552021 in words is "four hundred ninety-three million, five hundred fifty-two thousand, twenty-one".