525745657 has 2 divisors, whose sum is σ = 525745658. Its totient is φ = 525745656.

The previous prime is 525745643. The next prime is 525745673. The reversal of 525745657 is 756547525.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 313431616 + 212314041 = 17704^2 + 14571^2 .

It is a cyclic number.

It is not a de Polignac number, because 525745657 - 2¹¹ = 525743609 is a prime.

It is not a weakly prime, because it can be changed into another prime (525745057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262872828 + 262872829.

It is an arithmetic number, because the mean of its divisors is an integer number (262872829).

Almost surely, 2^525745657 is an apocalyptic number.

It is an amenable number.

525745657 is a deficient number, since it is larger than the sum of its proper divisors (1).

525745657 is an equidigital number, since it uses as much as digits as its factorization.

525745657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1470000, while the sum is 46.

The square root of 525745657 is about 22929.1442709928. The cubic root of 525745657 is about 807.0960675337.

The spelling of 525745657 in words is "five hundred twenty-five million, seven hundred forty-five thousand, six hundred fifty-seven".