525667 has 6 divisors (see below), whose sum is σ = 544164. Its totient is φ = 507780.

The previous prime is 525649. The next prime is 525671. The reversal of 525667 is 766525.

It is a de Polignac number, because none of the positive numbers 2^k-525667 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a d-powerful number, because it can be written as 5⁶ + 2⁸ + 6³ + 5⁸ + 6⁴ + 7⁶ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (525607) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 688 + ... + 1234.

It is an arithmetic number, because the mean of its divisors is an integer number (90694).

2⁵²⁵⁶⁶⁷ is an apocalyptic number.

525667 is a deficient number, since it is larger than the sum of its proper divisors (18497).

525667 is an equidigital number, since it uses as much as digits as its factorization.

525667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609 (or 578 counting only the distinct ones).

The product of its digits is 12600, while the sum is 31.

The square root of 525667 is about 725.0289649386. The cubic root of 525667 is about 80.7055815547.

The spelling of 525667 in words is "five hundred twenty-five thousand, six hundred sixty-seven".