525256547 has 2 divisors, whose sum is σ = 525256548. Its totient is φ = 525256546.

The previous prime is 525256519. The next prime is 525256549. The reversal of 525256547 is 745652525.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-525256547 is a prime.

Together with 525256549, it forms a pair of twin primes.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (525256549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262628273 + 262628274.

It is an arithmetic number, because the mean of its divisors is an integer number (262628274).

Almost surely, 2^525256547 is an apocalyptic number.

525256547 is a deficient number, since it is larger than the sum of its proper divisors (1).

525256547 is an equidigital number, since it uses as much as digits as its factorization.

525256547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 420000, while the sum is 41.

The square root of 525256547 is about 22918.4761055355. The cubic root of 525256547 is about 806.8457048773.

The spelling of 525256547 in words is "five hundred twenty-five million, two hundred fifty-six thousand, five hundred forty-seven".