528497401 has 2 divisors, whose sum is σ = 528497402. Its totient is φ = 528497400.

The previous prime is 528497399. The next prime is 528497423. The reversal of 528497401 is 104794825.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 415181376 + 113316025 = 20376^2 + 10645^2 .

It is a cyclic number.

It is not a de Polignac number, because 528497401 - 2¹ = 528497399 is a prime.

Together with 528497399, it forms a pair of twin primes.

It is equal to p_27775912 and since 528497401 and 27775912 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (528497461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264248700 + 264248701.

It is an arithmetic number, because the mean of its divisors is an integer number (264248701).

Almost surely, 2^528497401 is an apocalyptic number.

It is an amenable number.

528497401 is a deficient number, since it is larger than the sum of its proper divisors (1).

528497401 is an equidigital number, since it uses as much as digits as its factorization.

528497401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 528497401 is about 22989.0713383555. The cubic root of 528497401 is about 808.5017270978.

The spelling of 528497401 in words is "five hundred twenty-eight million, four hundred ninety-seven thousand, four hundred one".