10209448725 has 72 divisors (see below), whose sum is σ = 20166750912. Its totient is φ = 4464134400.

The previous prime is 10209448709. The next prime is 10209448727. The reversal of 10209448725 is 52784490201.

It is not a de Polignac number, because 10209448725 - 2⁴ = 10209448709 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10209448727) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 259345 + ... + 296105.

Almost surely, 2^10209448725 is an apocalyptic number.

10209448725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10209448725 is a deficient number, since it is larger than the sum of its proper divisors (9957302187).

10209448725 is a wasteful number, since it uses less digits than its factorization.

10209448725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36827 (or 36799 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The spelling of 10209448725 in words is "ten billion, two hundred nine million, four hundred forty-eight thousand, seven hundred twenty-five".