54442120157 has 2 divisors, whose sum is σ = 54442120158. Its totient is φ = 54442120156.

The previous prime is 54442120151. The next prime is 54442120177. The reversal of 54442120157 is 75102124445.

54442120157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52242416356 + 2199703801 = 228566^2 + 46901^2 .

It is a cyclic number.

It is not a de Polignac number, because 54442120157 - 2¹⁰ = 54442119133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54442120151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27221060078 + 27221060079.

It is an arithmetic number, because the mean of its divisors is an integer number (27221060079).

Almost surely, 2^54442120157 is an apocalyptic number.

It is an amenable number.

54442120157 is a deficient number, since it is larger than the sum of its proper divisors (1).

54442120157 is an equidigital number, since it uses as much as digits as its factorization.

54442120157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 44800, while the sum is 35.

The spelling of 54442120157 in words is "fifty-four billion, four hundred forty-two million, one hundred twenty thousand, one hundred fifty-seven".