290312725 has 12 divisors (see below), whose sum is σ = 365891140. Its totient is φ = 228441600.

The previous prime is 290312719. The next prime is 290312753. The reversal of 290312725 is 527213092.

It can be written as a sum of positive squares in 6 ways, for example, as 156725361 + 133587364 = 12519^2 + 11558^2 .

It is not a de Polignac number, because 290312725 - 2¹³ = 290304533 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93660 + ... + 96709.

Almost surely, 2^290312725 is an apocalyptic number.

290312725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

290312725 is a deficient number, since it is larger than the sum of its proper divisors (75578415).

290312725 is a wasteful number, since it uses less digits than its factorization.

290312725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190440 (or 190435 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 290312725 is about 17038.5658140584. The cubic root of 290312725 is about 662.1484357564.

The spelling of 290312725 in words is "two hundred ninety million, three hundred twelve thousand, seven hundred twenty-five".