290342525 has 36 divisors (see below), whose sum is σ = 405554772. Its totient is φ = 205920000.

The previous prime is 290342513. The next prime is 290342543. The reversal of 290342525 is 525243092.

290342525 = T₂₁₁₁ + T₂₁₁₂ + ... + T₂₂₃₃.

It can be written as a sum of positive squares in 6 ways, for example, as 33477796 + 256864729 = 5786^2 + 16027^2 .

It is not a de Polignac number, because 290342525 - 2⁴ = 290342509 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 290342491 and 290342500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 122855 + ... + 125195.

Almost surely, 2^290342525 is an apocalyptic number.

290342525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

290342525 is a deficient number, since it is larger than the sum of its proper divisors (115212247).

290342525 is a wasteful number, since it uses less digits than its factorization.

290342525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2414 (or 2398 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 290342525 is about 17039.4402783660. The cubic root of 290342525 is about 662.1710910364.

The spelling of 290342525 in words is "two hundred ninety million, three hundred forty-two thousand, five hundred twenty-five".