54542570025991 has 2 divisors, whose sum is σ = 54542570025992. Its totient is φ = 54542570025990.

The previous prime is 54542570025971. The next prime is 54542570026019. The reversal of 54542570025991 is 19952007524545.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54542570025991 - 2¹³ = 54542570017799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54542570025971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27271285012995 + 27271285012996.

It is an arithmetic number, because the mean of its divisors is an integer number (27271285012996).

Almost surely, 2^{54542570025991} is an apocalyptic number.

54542570025991 is a deficient number, since it is larger than the sum of its proper divisors (1).

54542570025991 is an equidigital number, since it uses as much as digits as its factorization.

54542570025991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680000, while the sum is 58.

The spelling of 54542570025991 in words is "fifty-four trillion, five hundred forty-two billion, five hundred seventy million, twenty-five thousand, nine hundred ninety-one".