2581050725 has 36 divisors (see below), whose sum is σ = 3685032000. Its totient is φ = 1778263200.

The previous prime is 2581050697. The next prime is 2581050733. The reversal of 2581050725 is 5270501852.

It is not a de Polignac number, because 2581050725 - 2²⁰ = 2580002149 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent 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 35 ways as a sum of consecutive naturals, for example, 86276 + ... + 112274.

It is an arithmetic number, because the mean of its divisors is an integer number (102362000).

Almost surely, 2^2581050725 is an apocalyptic number.

2581050725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2581050725 is a deficient number, since it is larger than the sum of its proper divisors (1103981275).

2581050725 is a wasteful number, since it uses less digits than its factorization.

2581050725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26058 (or 26034 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 35.

The square root of 2581050725 is about 50804.0424080604. The cubic root of 2581050725 is about 1371.7201340847.

The spelling of 2581050725 in words is "two billion, five hundred eighty-one million, fifty thousand, seven hundred twenty-five".