3261587425 has 6 divisors (see below), whose sum is σ = 4044368438. Its totient is φ = 2609269920.

The previous prime is 3261587393. The next prime is 3261587507. The reversal of 3261587425 is 5247851623.

It can be written as a sum of positive squares in 3 ways, for example, as 4260096 + 3257327329 = 2064^2 + 57073^2 .

It is not a de Polignac number, because 3261587425 - 2⁵ = 3261587393 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 65231724 + ... + 65231773.

Almost surely, 2^3261587425 is an apocalyptic number.

It is an amenable number.

3261587425 is a deficient number, since it is larger than the sum of its proper divisors (782781013).

3261587425 is a wasteful number, since it uses less digits than its factorization.

3261587425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130463507 (or 130463502 counting only the distinct ones).

The product of its digits is 403200, while the sum is 43.

The square root of 3261587425 is about 57110.3092707438. The cubic root of 3261587425 is about 1483.0063411131.

The spelling of 3261587425 in words is "three billion, two hundred sixty-one million, five hundred eighty-seven thousand, four hundred twenty-five".