27755757825 has 12 divisors (see below), whose sum is σ = 45889519728. Its totient is φ = 14803070800.

The previous prime is 27755757793. The next prime is 27755757839. The reversal of 27755757825 is 52875755772.

It is a happy number.

It is not a de Polignac number, because 27755757825 - 2⁵ = 27755757793 is a prime.

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, 185038311 + ... + 185038460.

It is an arithmetic number, because the mean of its divisors is an integer number (3824126644).

Almost surely, 2^27755757825 is an apocalyptic number.

27755757825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27755757825 is a deficient number, since it is larger than the sum of its proper divisors (18133761903).

27755757825 is a wasteful number, since it uses less digits than its factorization.

27755757825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370076784 (or 370076779 counting only the distinct ones).

The product of its digits is 48020000, while the sum is 60.

The spelling of 27755757825 in words is "twenty-seven billion, seven hundred fifty-five million, seven hundred fifty-seven thousand, eight hundred twenty-five".