55243602371 has 2 divisors, whose sum is σ = 55243602372. Its totient is φ = 55243602370.

The previous prime is 55243602367. The next prime is 55243602419. The reversal of 55243602371 is 17320634255.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55243602371 - 2² = 55243602367 is a prime.

It is not a weakly prime, because it can be changed into another prime (55243602311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27621801185 + 27621801186.

It is an arithmetic number, because the mean of its divisors is an integer number (27621801186).

Almost surely, 2^55243602371 is an apocalyptic number.

55243602371 is a deficient number, since it is larger than the sum of its proper divisors (1).

55243602371 is an equidigital number, since it uses as much as digits as its factorization.

55243602371 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 151200, while the sum is 38.

The spelling of 55243602371 in words is "fifty-five billion, two hundred forty-three million, six hundred two thousand, three hundred seventy-one".