55193137 has 2 divisors, whose sum is σ = 55193138. Its totient is φ = 55193136.

The previous prime is 55193129. The next prime is 55193141. The reversal of 55193137 is 73139155.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36192256 + 19000881 = 6016^2 + 4359^2 .

It is a cyclic number.

It is not a de Polignac number, because 55193137 - 2³ = 55193129 is a prime.

It is not a weakly prime, because it can be changed into another prime (55193107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27596568 + 27596569.

It is an arithmetic number, because the mean of its divisors is an integer number (27596569).

Almost surely, 2^55193137 is an apocalyptic number.

It is an amenable number.

55193137 is a deficient number, since it is larger than the sum of its proper divisors (1).

55193137 is an equidigital number, since it uses as much as digits as its factorization.

55193137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14175, while the sum is 34.

The square root of 55193137 is about 7429.2083696717. The cubic root of 55193137 is about 380.7398719920.

The spelling of 55193137 in words is "fifty-five million, one hundred ninety-three thousand, one hundred thirty-seven".