27457075501 has 2 divisors, whose sum is σ = 27457075502. Its totient is φ = 27457075500.

The previous prime is 27457075453. The next prime is 27457075507. The reversal of 27457075501 is 10557075472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22103958276 + 5353117225 = 148674^2 + 73165^2 .

It is a cyclic number.

It is not a de Polignac number, because 27457075501 - 2⁹ = 27457074989 is a prime.

It is a super-2 number, since 2×27457075501² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27457075507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13728537750 + 13728537751.

It is an arithmetic number, because the mean of its divisors is an integer number (13728537751).

Almost surely, 2^27457075501 is an apocalyptic number.

It is an amenable number.

27457075501 is a deficient number, since it is larger than the sum of its proper divisors (1).

27457075501 is an equidigital number, since it uses as much as digits as its factorization.

27457075501 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 27457075501 in words is "twenty-seven billion, four hundred fifty-seven million, seventy-five thousand, five hundred one".