2085439625 has 8 divisors (see below), whose sum is σ = 2602628808. Its totient is φ = 1668351600.

The previous prime is 2085439613. The next prime is 2085439637. The reversal of 2085439625 is 5269345802.

It is an interprime number because it is at equal distance from previous prime (2085439613) and next prime (2085439637).

It can be written as a sum of positive squares in 4 ways, for example, as 513792889 + 1571646736 = 22667^2 + 39644^2 .

It is not a de Polignac number, because 2085439625 - 2¹⁰ = 2085438601 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8341634 + ... + 8341883.

It is an arithmetic number, because the mean of its divisors is an integer number (325328601).

Almost surely, 2^2085439625 is an apocalyptic number.

2085439625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2085439625 is a deficient number, since it is larger than the sum of its proper divisors (517189183).

2085439625 is an equidigital number, since it uses as much as digits as its factorization.

2085439625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16683532 (or 16683522 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 44.

The square root of 2085439625 is about 45666.6138989963. The cubic root of 2085439625 is about 1277.6126613290.

The spelling of 2085439625 in words is "two billion, eighty-five million, four hundred thirty-nine thousand, six hundred twenty-five".