55708172185151 has 2 divisors, whose sum is σ = 55708172185152. Its totient is φ = 55708172185150.

The previous prime is 55708172185123. The next prime is 55708172185207. The reversal of 55708172185151 is 15158127180755.

It is an a-pointer prime, because the next prime (55708172185207) can be obtained adding 55708172185151 to its sum of digits (56).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55708172185151 - 2²⁶ = 55708105076287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55708172185951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27854086092575 + 27854086092576.

It is an arithmetic number, because the mean of its divisors is an integer number (27854086092576).

Almost surely, 2^{55708172185151} is an apocalyptic number.

55708172185151 is a deficient number, since it is larger than the sum of its proper divisors (1).

55708172185151 is an equidigital number, since it uses as much as digits as its factorization.

55708172185151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3920000, while the sum is 56.

The spelling of 55708172185151 in words is "fifty-five trillion, seven hundred eight billion, one hundred seventy-two million, one hundred eighty-five thousand, one hundred fifty-one".