525585149 has 2 divisors, whose sum is σ = 525585150. Its totient is φ = 525585148.

The previous prime is 525585143. The next prime is 525585169. The reversal of 525585149 is 941585525.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 472192900 + 53392249 = 21730^2 + 7307^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-525585149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (525585143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262792574 + 262792575.

It is an arithmetic number, because the mean of its divisors is an integer number (262792575).

Almost surely, 2^525585149 is an apocalyptic number.

It is an amenable number.

525585149 is a deficient number, since it is larger than the sum of its proper divisors (1).

525585149 is an equidigital number, since it uses as much as digits as its factorization.

525585149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 360000, while the sum is 44.

The square root of 525585149 is about 22925.6439168020. The cubic root of 525585149 is about 807.0139247971.

The spelling of 525585149 in words is "five hundred twenty-five million, five hundred eighty-five thousand, one hundred forty-nine".