55615584573137 has 2 divisors, whose sum is σ = 55615584573138. Its totient is φ = 55615584573136.

The previous prime is 55615584573083. The next prime is 55615584573139. The reversal of 55615584573137 is 73137548551655.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31322278550161 + 24293306022976 = 5596631^2 + 4928824^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55615584573137 is a prime.

Together with 55615584573139, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55615584573139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27807792286568 + 27807792286569.

It is an arithmetic number, because the mean of its divisors is an integer number (27807792286569).

Almost surely, 2^{55615584573137} is an apocalyptic number.

It is an amenable number.

55615584573137 is a deficient number, since it is larger than the sum of its proper divisors (1).

55615584573137 is an equidigital number, since it uses as much as digits as its factorization.

55615584573137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 264600000, while the sum is 65.

The spelling of 55615584573137 in words is "fifty-five trillion, six hundred fifteen billion, five hundred eighty-four million, five hundred seventy-three thousand, one hundred thirty-seven".