525456 has 60 divisors (see below), whose sum is σ = 1523340. Its totient is φ = 168960.

The previous prime is 525439. The next prime is 525457. The reversal of 525456 is 654525.

525456 is nontrivially palindromic in base 5.

It can be written as a sum of positive squares in 2 ways, for example, as 57600 + 467856 = 240^2 + 684^2 .

It is a super-2 number, since 2×525456² = 552208015872, which contains 22 as substring.

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 not an unprimeable number, because it can be changed into a prime (525457) by changing a digit.

525456 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 11 ways as a sum of consecutive naturals, for example, 5860 + ... + 5948.

It is an arithmetic number, because the mean of its divisors is an integer number (25389).

2⁵²⁵⁴⁵⁶ 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 525456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (761670).

525456 is an abundant number, since it is smaller than the sum of its proper divisors (997884).

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

525456 is a wasteful number, since it uses less digits than its factorization.

525456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144 (or 135 counting only the distinct ones).

The product of its digits is 6000, while the sum is 27.

The square root of 525456 is about 724.8834389059. The cubic root of 525456 is about 80.6947818427.

The spelling of 525456 in words is "five hundred twenty-five thousand, four hundred fifty-six".