26257280125 has 32 divisors (see below), whose sum is σ = 34318312704. Its totient is φ = 20019384000.

The previous prime is 26257280117. The next prime is 26257280129. The reversal of 26257280125 is 52108275262.

It is not a de Polignac number, because 26257280125 - 2³ = 26257280117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26257280129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 779890 + ... + 812860.

It is an arithmetic number, because the mean of its divisors is an integer number (1072447272).

Almost surely, 2^26257280125 is an apocalyptic number.

26257280125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26257280125 is a deficient number, since it is larger than the sum of its proper divisors (8061032579).

26257280125 is a wasteful number, since it uses less digits than its factorization.

26257280125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33286 (or 33276 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 40.

The spelling of 26257280125 in words is "twenty-six billion, two hundred fifty-seven million, two hundred eighty thousand, one hundred twenty-five".