27307121081225 has 12 divisors (see below), whose sum is σ = 33860931274716. Its totient is φ = 21845631617280.

The previous prime is 27307121081213. The next prime is 27307121081237. The reversal of 27307121081225 is 52218012170372.

It is an interprime number because it is at equal distance from previous prime (27307121081213) and next prime (27307121081237).

It can be written as a sum of positive squares in 6 ways, for example, as 4538467815424 + 22768653265801 = 2130368^2 + 4771651^2 .

It is not a de Polignac number, because 27307121081225 - 2¹² = 27307121077129 is a prime.

It is a Duffinian 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, 8028029 + ... + 10911621.

It is an arithmetic number, because the mean of its divisors is an integer number (2821744272893).

Almost surely, 2^{27307121081225} is an apocalyptic number.

27307121081225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27307121081225 is a deficient number, since it is larger than the sum of its proper divisors (6553810193491).

27307121081225 is a wasteful number, since it uses less digits than its factorization.

27307121081225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3262396 (or 3262391 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 41.

The spelling of 27307121081225 in words is "twenty-seven trillion, three hundred seven billion, one hundred twenty-one million, eighty-one thousand, two hundred twenty-five".