525745 has 16 divisors (see below), whose sum is σ = 702720. Its totient is φ = 377520.

The previous prime is 525739. The next prime is 525769. The reversal of 525745 is 547525.

It is not a de Polignac number, because 525745 - 2⁵ = 525713 is a prime.

525745 is a lucky number.

It is a nialpdrome in base 14.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6616 + ... + 6694.

It is an arithmetic number, because the mean of its divisors is an integer number (43920).

2⁵²⁵⁷⁴⁵ is an apocalyptic number.

525745 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

525745 is a deficient number, since it is larger than the sum of its proper divisors (176975).

525745 is an equidigital number, since it uses as much as digits as its factorization.

525745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117 (or 95 counting only the distinct ones).

The product of its digits is 7000, while the sum is 28.

The square root of 525745 is about 725.0827538978. The cubic root of 525745 is about 80.7095731337.

The spelling of 525745 in words is "five hundred twenty-five thousand, seven hundred forty-five".