525281069 has 2 divisors, whose sum is σ = 525281070. Its totient is φ = 525281068.

The previous prime is 525281027. The next prime is 525281149. The reversal of 525281069 is 960182525.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 468203044 + 57078025 = 21638^2 + 7555^2 .

It is a cyclic number.

It is not a de Polignac number, because 525281069 - 2²⁰ = 524232493 is a prime.

It is a super-2 number, since 2×525281069² = 551840402899565522, which contains 22 as substring.

It is equal to p_27615629 and since 525281069 and 27615629 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (525281269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262640534 + 262640535.

It is an arithmetic number, because the mean of its divisors is an integer number (262640535).

Almost surely, 2^525281069 is an apocalyptic number.

It is an amenable number.

525281069 is a deficient number, since it is larger than the sum of its proper divisors (1).

525281069 is an equidigital number, since it uses as much as digits as its factorization.

525281069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 525281069 is about 22919.0110825053. The cubic root of 525281069 is about 806.8582607497.

The spelling of 525281069 in words is "five hundred twenty-five million, two hundred eighty-one thousand, sixty-nine".