7525406925385 has 8 divisors (see below), whose sum is σ = 9030595419720. Its totient is φ = 6020254134144.

The previous prime is 7525406925349. The next prime is 7525406925403. The reversal of 7525406925385 is 5835296045257.

It can be written as a sum of positive squares in 4 ways, for example, as 2502774624256 + 5022632301129 = 1582016^2 + 2241123^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7525406925385 - 2¹¹ = 7525406923337 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 8459850 + ... + 9306979.

It is an arithmetic number, because the mean of its divisors is an integer number (1128824427465).

Almost surely, 2^{7525406925385} is an apocalyptic number.

It is an amenable number.

7525406925385 is a deficient number, since it is larger than the sum of its proper divisors (1505188494335).

7525406925385 is a wasteful number, since it uses less digits than its factorization.

7525406925385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17851547.

The product of its (nonzero) digits is 90720000, while the sum is 61.

The spelling of 7525406925385 in words is "seven trillion, five hundred twenty-five billion, four hundred six million, nine hundred twenty-five thousand, three hundred eighty-five".