55511055907 has 2 divisors, whose sum is σ = 55511055908. Its totient is φ = 55511055906.

The previous prime is 55511055883. The next prime is 55511056001. The reversal of 55511055907 is 70955011555.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55511055907 - 2¹⁹ = 55510531619 is a prime.

It is not a weakly prime, because it can be changed into another prime (55511055007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27755527953 + 27755527954.

It is an arithmetic number, because the mean of its divisors is an integer number (27755527954).

Almost surely, 2^55511055907 is an apocalyptic number.

55511055907 is a deficient number, since it is larger than the sum of its proper divisors (1).

55511055907 is an equidigital number, since it uses as much as digits as its factorization.

55511055907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 196875, while the sum is 43.

The spelling of 55511055907 in words is "fifty-five billion, five hundred eleven million, fifty-five thousand, nine hundred seven".