290250925081 has 8 divisors (see below), whose sum is σ = 323356468680. Its totient is φ = 258685174272.

The previous prime is 290250925031. The next prime is 290250925091. The reversal of 290250925081 is 180529052092.

It can be written as a sum of positive squares in 4 ways, for example, as 32126977600 + 258123947481 = 179240^2 + 508059^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 290250925081 - 2¹⁹ = 290250400793 is a prime.

It is a super-2 number, since 2×290250925081² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (290250925031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384947800 + ... + 384948553.

It is an arithmetic number, because the mean of its divisors is an integer number (40419558585).

Almost surely, 2^290250925081 is an apocalyptic number.

It is an amenable number.

290250925081 is a deficient number, since it is larger than the sum of its proper divisors (33105543599).

290250925081 is a wasteful number, since it uses less digits than its factorization.

290250925081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769896395.

The product of its (nonzero) digits is 129600, while the sum is 43.

The spelling of 290250925081 in words is "two hundred ninety billion, two hundred fifty million, nine hundred twenty-five thousand, eighty-one".