385566027725 has 12 divisors (see below), whose sum is σ = 478114196724. Its totient is φ = 308444872320.

The previous prime is 385566027719. The next prime is 385566027731. The reversal of 385566027725 is 527720665583.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (385566027719) and next prime (385566027731).

It can be written as a sum of positive squares in 6 ways, for example, as 102152469769 + 283413557956 = 319613^2 + 532366^2 .

It is not a de Polignac number, because 385566027725 - 2⁴ = 385566027709 is a prime.

It is a super-2 number, since 2×385566027725² (a number of 24 digits) contains 22 as substring.

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, 912467 + ... + 1266383.

It is an arithmetic number, because the mean of its divisors is an integer number (39842849727).

Almost surely, 2^385566027725 is an apocalyptic number.

It is an amenable number.

385566027725 is a deficient number, since it is larger than the sum of its proper divisors (92548168999).

385566027725 is a wasteful number, since it uses less digits than its factorization.

385566027725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397504 (or 397499 counting only the distinct ones).

The product of its (nonzero) digits is 21168000, while the sum is 56.

The spelling of 385566027725 in words is "three hundred eighty-five billion, five hundred sixty-six million, twenty-seven thousand, seven hundred twenty-five".