290631325 has 6 divisors (see below), whose sum is σ = 360382874. Its totient is φ = 232505040.

The previous prime is 290631287. The next prime is 290631349. The reversal of 290631325 is 523136092.

It can be written as a sum of positive squares in 3 ways, for example, as 68591524 + 222039801 = 8282^2 + 14901^2 .

It is not a de Polignac number, because 290631325 - 2¹³ = 290623133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5812602 + ... + 5812651.

Almost surely, 2^290631325 is an apocalyptic number.

290631325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

290631325 is a deficient number, since it is larger than the sum of its proper divisors (69751549).

290631325 is a wasteful number, since it uses less digits than its factorization.

290631325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11625263 (or 11625258 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 290631325 is about 17047.9126288235. The cubic root of 290631325 is about 662.3905693231.

The spelling of 290631325 in words is "two hundred ninety million, six hundred thirty-one thousand, three hundred twenty-five".