55065958639 has 2 divisors, whose sum is σ = 55065958640. Its totient is φ = 55065958638.

The previous prime is 55065958583. The next prime is 55065958643. The reversal of 55065958639 is 93685956055.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55065958639 - 2¹⁷ = 55065827567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55065958679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27532979319 + 27532979320.

It is an arithmetic number, because the mean of its divisors is an integer number (27532979320).

Almost surely, 2^55065958639 is an apocalyptic number.

55065958639 is a deficient number, since it is larger than the sum of its proper divisors (1).

55065958639 is an equidigital number, since it uses as much as digits as its factorization.

55065958639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43740000, while the sum is 61.

The spelling of 55065958639 in words is "fifty-five billion, sixty-five million, nine hundred fifty-eight thousand, six hundred thirty-nine".