55505005504051 has 2 divisors, whose sum is σ = 55505005504052. Its totient is φ = 55505005504050.

The previous prime is 55505005504043. The next prime is 55505005504063. The reversal of 55505005504051 is 15040550050555.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55505005504051 - 2³ = 55505005504043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55505005503995 and 55505005504013.

It is not a weakly prime, because it can be changed into another prime (55505005504001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27752502752025 + 27752502752026.

It is an arithmetic number, because the mean of its divisors is an integer number (27752502752026).

Almost surely, 2^{55505005504051} is an apocalyptic number.

55505005504051 is a deficient number, since it is larger than the sum of its proper divisors (1).

55505005504051 is an equidigital number, since it uses as much as digits as its factorization.

55505005504051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 312500, while the sum is 40.

The spelling of 55505005504051 in words is "fifty-five trillion, five hundred five billion, five million, five hundred four thousand, fifty-one".