525665461 has 2 divisors, whose sum is σ = 525665462. Its totient is φ = 525665460.

The previous prime is 525665431. The next prime is 525665473. The reversal of 525665461 is 164566525.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 313962961 + 211702500 = 17719^2 + 14550^2 .

It is a cyclic number.

It is not a de Polignac number, because 525665461 - 2⁵ = 525665429 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (525665431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262832730 + 262832731.

It is an arithmetic number, because the mean of its divisors is an integer number (262832731).

Almost surely, 2^525665461 is an apocalyptic number.

It is an amenable number.

525665461 is a deficient number, since it is larger than the sum of its proper divisors (1).

525665461 is an equidigital number, since it uses as much as digits as its factorization.

525665461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216000, while the sum is 40.

The square root of 525665461 is about 22927.3954255602. The cubic root of 525665461 is about 807.0550279380.

The spelling of 525665461 in words is "five hundred twenty-five million, six hundred sixty-five thousand, four hundred sixty-one".