2390881025 has 18 divisors (see below), whose sum is σ = 3210293970. Its totient is φ = 1765570560.

The previous prime is 2390881021. The next prime is 2390881049. The reversal of 2390881025 is 5201880932.

It can be written as a sum of positive squares in 9 ways, for example, as 1548894736 + 841986289 = 39356^2 + 29017^2 .

It is not a de Polignac number, because 2390881025 - 2² = 2390881021 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2390881025.

It is not an unprimeable number, because it can be changed into a prime (2390881021) by changing a digit.

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 17 ways as a sum of consecutive naturals, for example, 278720 + ... + 287169.

It is an arithmetic number, because the mean of its divisors is an integer number (178349665).

Almost surely, 2^2390881025 is an apocalyptic number.

2390881025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2390881025 is a deficient number, since it is larger than the sum of its proper divisors (819412945).

2390881025 is a wasteful number, since it uses less digits than its factorization.

2390881025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565925 (or 565907 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 2390881025 is about 48896.6361317422. The cubic root of 2390881025 is about 1337.1680417618.

The spelling of 2390881025 in words is "two billion, three hundred ninety million, eight hundred eighty-one thousand, twenty-five".