525448 has 32 divisors (see below), whose sum is σ = 1229760. Its totient is φ = 204480.

The previous prime is 525439. The next prime is 525457. The reversal of 525448 is 844525.

It is an interprime number because it is at equal distance from previous prime (525439) and next prime (525457).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

525448 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 7 ways as a sum of consecutive naturals, for example, 190 + ... + 1042.

It is an arithmetic number, because the mean of its divisors is an integer number (38430).

2⁵²⁵⁴⁴⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 525448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (614880).

525448 is an abundant number, since it is smaller than the sum of its proper divisors (704312).

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

525448 is a wasteful number, since it uses less digits than its factorization.

525448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877 (or 873 counting only the distinct ones).

The product of its digits is 6400, while the sum is 28.

The square root of 525448 is about 724.8779207563. The cubic root of 525448 is about 80.6943723180.

The spelling of 525448 in words is "five hundred twenty-five thousand, four hundred forty-eight".