55486121371 has 2 divisors, whose sum is σ = 55486121372. Its totient is φ = 55486121370.

The previous prime is 55486121351. The next prime is 55486121377. The reversal of 55486121371 is 17312168455.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55486121371 is a prime.

It is not a weakly prime, because it can be changed into another prime (55486121377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27743060685 + 27743060686.

It is an arithmetic number, because the mean of its divisors is an integer number (27743060686).

Almost surely, 2^55486121371 is an apocalyptic number.

55486121371 is a deficient number, since it is larger than the sum of its proper divisors (1).

55486121371 is an equidigital number, since it uses as much as digits as its factorization.

55486121371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 201600, while the sum is 43.

The spelling of 55486121371 in words is "fifty-five billion, four hundred eighty-six million, one hundred twenty-one thousand, three hundred seventy-one".