525388 has 24 divisors (see below), whose sum is σ = 1003520. Its totient is φ = 239760.

The previous prime is 525379. The next prime is 525391. The reversal of 525388 is 883525.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2245 + ... + 2467.

2⁵²⁵³⁸⁸ is an apocalyptic number.

It is an amenable number.

525388 is a deficient number, since it is larger than the sum of its proper divisors (478132).

525388 is a wasteful number, since it uses less digits than its factorization.

525388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277 (or 275 counting only the distinct ones).

The product of its digits is 9600, while the sum is 31.

The square root of 525388 is about 724.8365332956. The cubic root of 525388 is about 80.6913007508.

It can be divided in two parts, 5253 and 88, that multiplied together give a palindrome (462264).

The spelling of 525388 in words is "five hundred twenty-five thousand, three hundred eighty-eight".