525649847 has 2 divisors, whose sum is σ = 525649848. Its totient is φ = 525649846.

The previous prime is 525649837. The next prime is 525649867. The reversal of 525649847 is 748946525.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 525649847 - 2¹² = 525645751 is a prime.

It is a super-2 number, since 2×525649847² = 552615523302246818, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 525649795 and 525649804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (525649837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262824923 + 262824924.

It is an arithmetic number, because the mean of its divisors is an integer number (262824924).

Almost surely, 2^525649847 is an apocalyptic number.

525649847 is a deficient number, since it is larger than the sum of its proper divisors (1).

525649847 is an equidigital number, since it uses as much as digits as its factorization.

525649847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2419200, while the sum is 50.

The square root of 525649847 is about 22927.0549133551. The cubic root of 525649847 is about 807.0470371258.

The spelling of 525649847 in words is "five hundred twenty-five million, six hundred forty-nine thousand, eight hundred forty-seven".