290557125 has 40 divisors (see below), whose sum is σ = 541703448. Its totient is φ = 154958400.

The previous prime is 290557097. The next prime is 290557147. The reversal of 290557125 is 521755092.

290557125 is a `hidden beast` number, since 2 + 90 + 557 + 12 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 57017601 + 233539524 = 7551^2 + 15282^2 .

It is not a de Polignac number, because 290557125 - 2⁵ = 290557093 is a prime.

It is a nialpdrome in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 290557125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4224 + ... + 24473.

Almost surely, 2^290557125 is an apocalyptic number.

290557125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

290557125 is a deficient number, since it is larger than the sum of its proper divisors (251146323).

290557125 is an equidigital number, since it uses as much as digits as its factorization.

290557125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28724 (or 28705 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 36.

The square root of 290557125 is about 17045.7362703991. The cubic root of 290557125 is about 662.3341937029.

The spelling of 290557125 in words is "two hundred ninety million, five hundred fifty-seven thousand, one hundred twenty-five".