525706553 has 2 divisors, whose sum is σ = 525706554. Its totient is φ = 525706552.

The previous prime is 525706549. The next prime is 525706603. The reversal of 525706553 is 355607525.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 292136464 + 233570089 = 17092^2 + 15283^2 .

It is a cyclic number.

It is not a de Polignac number, because 525706553 - 2² = 525706549 is a prime.

It is not a weakly prime, because it can be changed into another prime (525706513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262853276 + 262853277.

It is an arithmetic number, because the mean of its divisors is an integer number (262853277).

Almost surely, 2^525706553 is an apocalyptic number.

It is an amenable number.

525706553 is a deficient number, since it is larger than the sum of its proper divisors (1).

525706553 is an equidigital number, since it uses as much as digits as its factorization.

525706553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 157500, while the sum is 38.

The square root of 525706553 is about 22928.2915412379. The cubic root of 525706553 is about 807.0760569280.

The spelling of 525706553 in words is "five hundred twenty-five million, seven hundred six thousand, five hundred fifty-three".