54291900889 has 2 divisors, whose sum is σ = 54291900890. Its totient is φ = 54291900888.

The previous prime is 54291900863. The next prime is 54291900899. The reversal of 54291900889 is 98800919245.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53130250000 + 1161650889 = 230500^2 + 34083^2 .

It is a cyclic number.

It is not a de Polignac number, because 54291900889 - 2¹¹ = 54291898841 is a prime.

It is a super-2 number, since 2×54291900889² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (54291900899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27145950444 + 27145950445.

It is an arithmetic number, because the mean of its divisors is an integer number (27145950445).

Almost surely, 2^54291900889 is an apocalyptic number.

It is an amenable number.

54291900889 is a deficient number, since it is larger than the sum of its proper divisors (1).

54291900889 is an equidigital number, since it uses as much as digits as its factorization.

54291900889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1866240, while the sum is 55.

The spelling of 54291900889 in words is "fifty-four billion, two hundred ninety-one million, nine hundred thousand, eight hundred eighty-nine".