55479720237859 has 2 divisors, whose sum is σ = 55479720237860. Its totient is φ = 55479720237858.

The previous prime is 55479720237829. The next prime is 55479720237889. The reversal of 55479720237859 is 95873202797455.

It is a balanced prime because it is at equal distance from previous prime (55479720237829) and next prime (55479720237889).

It is a cyclic number.

It is not a de Polignac number, because 55479720237859 - 2⁵ = 55479720237827 is a prime.

It is a super-2 number, since 2×55479720237859² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55479720237791 and 55479720237800.

It is not a weakly prime, because it can be changed into another prime (55479720237829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27739860118929 + 27739860118930.

It is an arithmetic number, because the mean of its divisors is an integer number (27739860118930).

Almost surely, 2^{55479720237859} is an apocalyptic number.

55479720237859 is a deficient number, since it is larger than the sum of its proper divisors (1).

55479720237859 is an equidigital number, since it uses as much as digits as its factorization.

55479720237859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1333584000, while the sum is 73.

The spelling of 55479720237859 in words is "fifty-five trillion, four hundred seventy-nine billion, seven hundred twenty million, two hundred thirty-seven thousand, eight hundred fifty-nine".