525423553 has 2 divisors, whose sum is σ = 525423554. Its totient is φ = 525423552.

The previous prime is 525423551. The next prime is 525423589. The reversal of 525423553 is 355324525.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 475763344 + 49660209 = 21812^2 + 7047^2 .

It is a cyclic number.

It is not a de Polignac number, because 525423553 - 2¹ = 525423551 is a prime.

Together with 525423551, it forms a pair of twin primes.

It is equal to p_27622762 and since 525423553 and 27622762 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (525423551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262711776 + 262711777.

It is an arithmetic number, because the mean of its divisors is an integer number (262711777).

Almost surely, 2^525423553 is an apocalyptic number.

It is an amenable number.

525423553 is a deficient number, since it is larger than the sum of its proper divisors (1).

525423553 is an equidigital number, since it uses as much as digits as its factorization.

525423553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90000, while the sum is 34.

The square root of 525423553 is about 22922.1192955625. The cubic root of 525423553 is about 806.9312083619.

The spelling of 525423553 in words is "five hundred twenty-five million, four hundred twenty-three thousand, five hundred fifty-three".