525623971 has 2 divisors, whose sum is σ = 525623972. Its totient is φ = 525623970.

The previous prime is 525623963. The next prime is 525624023. The reversal of 525623971 is 179326525.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 525623971 - 2³ = 525623963 is a prime.

It is not a weakly prime, because it can be changed into another prime (525623951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262811985 + 262811986.

It is an arithmetic number, because the mean of its divisors is an integer number (262811986).

Almost surely, 2^525623971 is an apocalyptic number.

525623971 is a deficient number, since it is larger than the sum of its proper divisors (1).

525623971 is an equidigital number, since it uses as much as digits as its factorization.

525623971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 113400, while the sum is 40.

The square root of 525623971 is about 22926.4905949428. The cubic root of 525623971 is about 807.0337941581.

The spelling of 525623971 in words is "five hundred twenty-five million, six hundred twenty-three thousand, nine hundred seventy-one".