525993447 has 32 divisors (see below), whose sum is σ = 850493952. Its totient is φ = 282276864.

The previous prime is 525993439. The next prime is 525993449. The reversal of 525993447 is 744399525.

It is not a de Polignac number, because 525993447 - 2³ = 525993439 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 525993396 and 525993405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525993449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 199683 + ... + 202299.

It is an arithmetic number, because the mean of its divisors is an integer number (26577936).

Almost surely, 2^525993447 is an apocalyptic number.

525993447 is a deficient number, since it is larger than the sum of its proper divisors (324500505).

525993447 is a wasteful number, since it uses less digits than its factorization.

525993447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3207.

The product of its digits is 1360800, while the sum is 48.

The square root of 525993447 is about 22934.5470197255. The cubic root of 525993447 is about 807.2228455178. Note that the first 3 decimals are identical.

The spelling of 525993447 in words is "five hundred twenty-five million, nine hundred ninety-three thousand, four hundred forty-seven".