525438 has 12 divisors (see below), whose sum is σ = 1138488. Its totient is φ = 175140.

The previous prime is 525433. The next prime is 525439. The reversal of 525438 is 834525.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 525438.

It is not an unprimeable number, because it can be changed into a prime (525431) by changing a digit.

525438 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14578 + ... + 14613.

It is an arithmetic number, because the mean of its divisors is an integer number (94874).

2⁵²⁵⁴³⁸ is an apocalyptic number.

525438 is an abundant number, since it is smaller than the sum of its proper divisors (613050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

525438 is a wasteful number, since it uses less digits than its factorization.

525438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29199 (or 29196 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 525438 is about 724.8710230103. The cubic root of 525438 is about 80.6938604064.

The spelling of 525438 in words is "five hundred twenty-five thousand, four hundred thirty-eight".