27752750125 has 8 divisors (see below), whose sum is σ = 34635432312. Its totient is φ = 22202200000.

The previous prime is 27752750119. The next prime is 27752750131. The reversal of 27752750125 is 52105725772.

It is an interprime number because it is at equal distance from previous prime (27752750119) and next prime (27752750131).

It can be written as a sum of positive squares in 4 ways, for example, as 4895241156 + 22857508969 = 69966^2 + 151187^2 .

It is not a de Polignac number, because 27752750125 - 2²¹ = 27750652973 is a prime.

It is a super-4 number, since 4×27752750125⁴ (a number of 43 digits) contains 4444 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 7 ways as a sum of consecutive naturals, for example, 111010876 + ... + 111011125.

It is an arithmetic number, because the mean of its divisors is an integer number (4329429039).

Almost surely, 2^27752750125 is an apocalyptic number.

27752750125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27752750125 is a deficient number, since it is larger than the sum of its proper divisors (6882682187).

27752750125 is an equidigital number, since it uses as much as digits as its factorization.

27752750125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222022016 (or 222022006 counting only the distinct ones).

The product of its (nonzero) digits is 343000, while the sum is 43.

The spelling of 27752750125 in words is "twenty-seven billion, seven hundred fifty-two million, seven hundred fifty thousand, one hundred twenty-five".