55719127 has 2 divisors, whose sum is σ = 55719128. Its totient is φ = 55719126.

The previous prime is 55719119. The next prime is 55719137. The reversal of 55719127 is 72191755.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55719127 - 2³ = 55719119 is a prime.

It is a super-2 number, since 2×55719127² = 6209242227284258, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55719107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27859563 + 27859564.

It is an arithmetic number, because the mean of its divisors is an integer number (27859564).

Almost surely, 2^55719127 is an apocalyptic number.

55719127 is a deficient number, since it is larger than the sum of its proper divisors (1).

55719127 is an equidigital number, since it uses as much as digits as its factorization.

55719127 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22050, while the sum is 37.

The square root of 55719127 is about 7464.5245662400. The cubic root of 55719127 is about 381.9455323783.

The spelling of 55719127 in words is "fifty-five million, seven hundred nineteen thousand, one hundred twenty-seven".