26725140625 has 14 divisors (see below), whose sum is σ = 33406017710. Its totient is φ = 21380100000.

The previous prime is 26725140623. The next prime is 26725140643. The reversal of 26725140625 is 52604152762.

It can be written as a sum of positive squares in 7 ways, for example, as 23172146176 + 3552994449 = 152224^2 + 59607^2 .

It is not a de Polignac number, because 26725140625 - 2¹ = 26725140623 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26725140623) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 839580 + ... + 870829.

Almost surely, 2^26725140625 is an apocalyptic number.

26725140625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26725140625 is a deficient number, since it is larger than the sum of its proper divisors (6680877085).

26725140625 is an frugal number, since it uses more digits than its factorization.

26725140625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1710439 (or 1710414 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 40.

The spelling of 26725140625 in words is "twenty-six billion, seven hundred twenty-five million, one hundred forty thousand, six hundred twenty-five".