385525257725 has 6 divisors (see below), whose sum is σ = 478051319610. Its totient is φ = 308420206160.

The previous prime is 385525257647. The next prime is 385525257791. The reversal of 385525257725 is 527752525583.

It can be written as a sum of positive squares in 3 ways, for example, as 106543684 + 385418714041 = 10322^2 + 620821^2 .

It is not a de Polignac number, because 385525257725 - 2¹² = 385525253629 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7710505130 + ... + 7710505179.

It is an arithmetic number, because the mean of its divisors is an integer number (79675219935).

Almost surely, 2^385525257725 is an apocalyptic number.

It is an amenable number.

385525257725 is a deficient number, since it is larger than the sum of its proper divisors (92526061885).

385525257725 is a wasteful number, since it uses less digits than its factorization.

385525257725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15421010319 (or 15421010314 counting only the distinct ones).

The product of its digits is 29400000, while the sum is 56.

The spelling of 385525257725 in words is "three hundred eighty-five billion, five hundred twenty-five million, two hundred fifty-seven thousand, seven hundred twenty-five".