55615560047 has 2 divisors, whose sum is σ = 55615560048. Its totient is φ = 55615560046.

The previous prime is 55615560043. The next prime is 55615560071. The reversal of 55615560047 is 74006551655.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55615560047 - 2² = 55615560043 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55615560043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27807780023 + 27807780024.

It is an arithmetic number, because the mean of its divisors is an integer number (27807780024).

Almost surely, 2^55615560047 is an apocalyptic number.

55615560047 is a deficient number, since it is larger than the sum of its proper divisors (1).

55615560047 is an equidigital number, since it uses as much as digits as its factorization.

55615560047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 630000, while the sum is 44.

The spelling of 55615560047 in words is "fifty-five billion, six hundred fifteen million, five hundred sixty thousand, forty-seven".