493525391 has 4 divisors (see below), whose sum is σ = 495210072. Its totient is φ = 491840712.

The previous prime is 493525337. The next prime is 493525397. The reversal of 493525391 is 193525394.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 493525391 - 2⁶ = 493525327 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 (493525397) 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 3 ways as a sum of consecutive naturals, for example, 841901 + ... + 842486.

It is an arithmetic number, because the mean of its divisors is an integer number (123802518).

Almost surely, 2^493525391 is an apocalyptic number.

493525391 is a deficient number, since it is larger than the sum of its proper divisors (1684681).

493525391 is a wasteful number, since it uses less digits than its factorization.

493525391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1684680.

The product of its digits is 145800, while the sum is 41.

The square root of 493525391 is about 22215.4313710088. The cubic root of 493525391 is about 790.2596972405.

The spelling of 493525391 in words is "four hundred ninety-three million, five hundred twenty-five thousand, three hundred ninety-one".