55651001671 has 2 divisors, whose sum is σ = 55651001672. Its totient is φ = 55651001670.

The previous prime is 55651001573. The next prime is 55651001713. The reversal of 55651001671 is 17610015655.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55651001671 - 2⁷ = 55651001543 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55651001671.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55651005671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27825500835 + 27825500836.

It is an arithmetic number, because the mean of its divisors is an integer number (27825500836).

Almost surely, 2^55651001671 is an apocalyptic number.

55651001671 is a deficient number, since it is larger than the sum of its proper divisors (1).

55651001671 is an equidigital number, since it uses as much as digits as its factorization.

55651001671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31500, while the sum is 37.

The spelling of 55651001671 in words is "fifty-five billion, six hundred fifty-one million, one thousand, six hundred seventy-one".