525366 has 48 divisors (see below), whose sum is σ = 1257984. Its totient is φ = 163944.

The previous prime is 525361. The next prime is 525373. The reversal of 525366 is 663525.

It is a Harshad number since it is a multiple of its sum of digits (27).

Its product of digits (5400) is a multiple of the sum of its prime divisors (75).

It is a Curzon number.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525361) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11155 + ... + 11201.

It is an arithmetic number, because the mean of its divisors is an integer number (26208).

2⁵²⁵³⁶⁶ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 525366, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (628992).

525366 is an abundant number, since it is smaller than the sum of its proper divisors (732618).

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

525366 is a wasteful number, since it uses less digits than its factorization.

525366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87 (or 75 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 525366 is about 724.8213573012. The cubic root of 525366 is about 80.6901744509.

The spelling of 525366 in words is "five hundred twenty-five thousand, three hundred sixty-six".