27551207413 has 2 divisors, whose sum is σ = 27551207414. Its totient is φ = 27551207412.

The previous prime is 27551207389. The next prime is 27551207449. The reversal of 27551207413 is 31470215572.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26230393764 + 1320813649 = 161958^2 + 36343^2 .

It is a cyclic number.

It is not a de Polignac number, because 27551207413 - 2⁹ = 27551206901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27551207213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13775603706 + 13775603707.

It is an arithmetic number, because the mean of its divisors is an integer number (13775603707).

Almost surely, 2^27551207413 is an apocalyptic number.

It is an amenable number.

27551207413 is a deficient number, since it is larger than the sum of its proper divisors (1).

27551207413 is an equidigital number, since it uses as much as digits as its factorization.

27551207413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58800, while the sum is 37.

The spelling of 27551207413 in words is "twenty-seven billion, five hundred fifty-one million, two hundred seven thousand, four hundred thirteen".