525922561 has 2 divisors, whose sum is σ = 525922562. Its totient is φ = 525922560.

The previous prime is 525922549. The next prime is 525922583. The reversal of 525922561 is 165229525.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 517107600 + 8814961 = 22740^2 + 2969^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-525922561 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 525922561.

It is not a weakly prime, because it can be changed into another prime (525926561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262961280 + 262961281.

It is an arithmetic number, because the mean of its divisors is an integer number (262961281).

Almost surely, 2^525922561 is an apocalyptic number.

It is an amenable number.

525922561 is a deficient number, since it is larger than the sum of its proper divisors (1).

525922561 is an equidigital number, since it uses as much as digits as its factorization.

525922561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54000, while the sum is 37.

The square root of 525922561 is about 22933.0015697902. The cubic root of 525922561 is about 807.1865818408.

The spelling of 525922561 in words is "five hundred twenty-five million, nine hundred twenty-two thousand, five hundred sixty-one".