55451220037 has 2 divisors, whose sum is σ = 55451220038. Its totient is φ = 55451220036.

The previous prime is 55451220017. The next prime is 55451220043. The reversal of 55451220037 is 73002215455.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48788416161 + 6662803876 = 220881^2 + 81626^2 .

It is a cyclic number.

It is not a de Polignac number, because 55451220037 - 2⁷ = 55451219909 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55451219984 and 55451220011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55451220017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27725610018 + 27725610019.

It is an arithmetic number, because the mean of its divisors is an integer number (27725610019).

Almost surely, 2^55451220037 is an apocalyptic number.

It is an amenable number.

55451220037 is a deficient number, since it is larger than the sum of its proper divisors (1).

55451220037 is an equidigital number, since it uses as much as digits as its factorization.

55451220037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42000, while the sum is 34.

The spelling of 55451220037 in words is "fifty-five billion, four hundred fifty-one million, two hundred twenty thousand, thirty-seven".