528245493 has 4 divisors (see below), whose sum is σ = 704327328. Its totient is φ = 352163660.

The previous prime is 528245483. The next prime is 528245503. The reversal of 528245493 is 394542825.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (528245483) and next prime (528245503).

It is a cyclic number.

It is not a de Polignac number, because 528245493 - 2²² = 524051189 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (528245483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88040913 + ... + 88040918.

It is an arithmetic number, because the mean of its divisors is an integer number (176081832).

Almost surely, 2^528245493 is an apocalyptic number.

It is an amenable number.

528245493 is a deficient number, since it is larger than the sum of its proper divisors (176081835).

528245493 is a wasteful number, since it uses less digits than its factorization.

528245493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176081834.

The product of its digits is 345600, while the sum is 42.

The square root of 528245493 is about 22983.5918211232. The cubic root of 528245493 is about 808.3732493792.

The spelling of 528245493 in words is "five hundred twenty-eight million, two hundred forty-five thousand, four hundred ninety-three".