55066711507 has 2 divisors, whose sum is σ = 55066711508. Its totient is φ = 55066711506.

The previous prime is 55066711439. The next prime is 55066711541. The reversal of 55066711507 is 70511766055.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55066711507 - 2²⁷ = 54932493779 is a prime.

It is a super-2 number, since 2×55066711507² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55066781507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27533355753 + 27533355754.

It is an arithmetic number, because the mean of its divisors is an integer number (27533355754).

Almost surely, 2^55066711507 is an apocalyptic number.

55066711507 is a deficient number, since it is larger than the sum of its proper divisors (1).

55066711507 is an equidigital number, since it uses as much as digits as its factorization.

55066711507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 220500, while the sum is 43.

The spelling of 55066711507 in words is "fifty-five billion, sixty-six million, seven hundred eleven thousand, five hundred seven".