528001493 has 2 divisors, whose sum is σ = 528001494. Its totient is φ = 528001492.

The previous prime is 528001471. The next prime is 528001553. The reversal of 528001493 is 394100825.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 416445649 + 111555844 = 20407^2 + 10562^2 .

It is a cyclic number.

It is not a de Polignac number, because 528001493 - 2²² = 523807189 is a prime.

It is a super-2 number, since 2×528001493² = 557571153220458098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (528001193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264000746 + 264000747.

It is an arithmetic number, because the mean of its divisors is an integer number (264000747).

Almost surely, 2^528001493 is an apocalyptic number.

It is an amenable number.

528001493 is a deficient number, since it is larger than the sum of its proper divisors (1).

528001493 is an equidigital number, since it uses as much as digits as its factorization.

528001493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 528001493 is about 22978.2830733717. The cubic root of 528001493 is about 808.2487659383.

The spelling of 528001493 in words is "five hundred twenty-eight million, one thousand, four hundred ninety-three".