27504157 has 2 divisors, whose sum is σ = 27504158. Its totient is φ = 27504156.

The previous prime is 27504149. The next prime is 27504163. The reversal of 27504157 is 75140572.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25462116 + 2042041 = 5046^2 + 1429^2 .

It is a cyclic number.

It is not a de Polignac number, because 27504157 - 2³ = 27504149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27504167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13752078 + 13752079.

It is an arithmetic number, because the mean of its divisors is an integer number (13752079).

Almost surely, 2^27504157 is an apocalyptic number.

It is an amenable number.

27504157 is a deficient number, since it is larger than the sum of its proper divisors (1).

27504157 is an equidigital number, since it uses as much as digits as its factorization.

27504157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9800, while the sum is 31.

The square root of 27504157 is about 5244.4405802716. The cubic root of 27504157 is about 301.8557451780.

The spelling of 27504157 in words is "twenty-seven million, five hundred four thousand, one hundred fifty-seven".