55501808050057 has 2 divisors, whose sum is σ = 55501808050058. Its totient is φ = 55501808050056.

The previous prime is 55501808050049. The next prime is 55501808050093. The reversal of 55501808050057 is 75005080810555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43686494899776 + 11815313150281 = 6609576^2 + 3437341^2 .

It is a cyclic number.

It is not a de Polignac number, because 55501808050057 - 2³ = 55501808050049 is a prime.

It is not a weakly prime, because it can be changed into another prime (55501808050027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27750904025028 + 27750904025029.

It is an arithmetic number, because the mean of its divisors is an integer number (27750904025029).

Almost surely, 2^{55501808050057} is an apocalyptic number.

It is an amenable number.

55501808050057 is a deficient number, since it is larger than the sum of its proper divisors (1).

55501808050057 is an equidigital number, since it uses as much as digits as its factorization.

55501808050057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1400000, while the sum is 49.

The spelling of 55501808050057 in words is "fifty-five trillion, five hundred one billion, eight hundred eight million, fifty thousand, fifty-seven".