55136620720039 has 2 divisors, whose sum is σ = 55136620720040. Its totient is φ = 55136620720038.

The previous prime is 55136620719839. The next prime is 55136620720109. The reversal of 55136620720039 is 93002702663155.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55136620720039 - 2⁹ = 55136620719527 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55136620719974 and 55136620720001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55136620720639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27568310360019 + 27568310360020.

It is an arithmetic number, because the mean of its divisors is an integer number (27568310360020).

Almost surely, 2^{55136620720039} is an apocalyptic number.

55136620720039 is a deficient number, since it is larger than the sum of its proper divisors (1).

55136620720039 is an equidigital number, since it uses as much as digits as its factorization.

55136620720039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2041200, while the sum is 49.

The spelling of 55136620720039 in words is "fifty-five trillion, one hundred thirty-six billion, six hundred twenty million, seven hundred twenty thousand, thirty-nine".