21072526752325 has 12 divisors (see below), whose sum is σ = 26130005617248. Its totient is φ = 16857974663600.

The previous prime is 21072526752271. The next prime is 21072526752377. The reversal of 21072526752325 is 52325762527012.

It is a happy number.

It is not a de Polignac number, because 21072526752325 - 2¹³ = 21072526744133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10196664 + ... + 12087886.

It is an arithmetic number, because the mean of its divisors is an integer number (2177500468104).

Almost surely, 2^{21072526752325} is an apocalyptic number.

21072526752325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

21072526752325 is a deficient number, since it is larger than the sum of its proper divisors (5057478864923).

21072526752325 is a wasteful number, since it uses less digits than its factorization.

21072526752325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2336924 (or 2336919 counting only the distinct ones).

The product of its (nonzero) digits is 3528000, while the sum is 49.

The spelling of 21072526752325 in words is "twenty-one trillion, seventy-two billion, five hundred twenty-six million, seven hundred fifty-two thousand, three hundred twenty-five".