290525 has 6 divisors (see below), whose sum is σ = 360282. Its totient is φ = 232400.

The previous prime is 290509. The next prime is 290527. The reversal of 290525 is 525092.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 4 + 290521 = 2^2 + 539^2 .

It is not a de Polignac number, because 290525 - 2⁴ = 290509 is a prime.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 290525.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 290525.

It is not an unprimeable number, because it can be changed into a prime (290527) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5786 + ... + 5835.

It is an arithmetic number, because the mean of its divisors is an integer number (60047).

2²⁹⁰⁵²⁵ is an apocalyptic number.

290525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

290525 is a deficient number, since it is larger than the sum of its proper divisors (69757).

290525 is a wasteful number, since it uses less digits than its factorization.

290525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11631 (or 11626 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 290525 is about 539.0037105624. The cubic root of 290525 is about 66.2309782817.

The spelling of 290525 in words is "two hundred ninety thousand, five hundred twenty-five".