525490 has 16 divisors (see below), whose sum is σ = 1081152. Its totient is φ = 180144.

The previous prime is 525467. The next prime is 525491. The reversal of 525490 is 94525.

It is a super-2 number, since 2×525490² = 552279480200, which contains 22 as substring.

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

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (525491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3684 + ... + 3823.

It is an arithmetic number, because the mean of its divisors is an integer number (67572).

2⁵²⁵⁴⁹⁰ is an apocalyptic number.

525490 is an abundant number, since it is smaller than the sum of its proper divisors (555662).

It is a weird number, because it is abundant, but not a pseudoperfect number.

525490 is a wasteful number, since it uses less digits than its factorization.

525490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7521.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 525490 is about 724.9068905729. The cubic root of 525490 is about 80.6965222760.

The spelling of 525490 in words is "five hundred twenty-five thousand, four hundred ninety".