54800989 has 2 divisors, whose sum is σ = 54800990. Its totient is φ = 54800988.

The previous prime is 54800987. The next prime is 54801011. The reversal of 54800989 is 98900845.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43692100 + 11108889 = 6610^2 + 3333^2 .

It is a cyclic number.

It is not a de Polignac number, because 54800989 - 2¹ = 54800987 is a prime.

Together with 54800987, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54800987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27400494 + 27400495.

It is an arithmetic number, because the mean of its divisors is an integer number (27400495).

Almost surely, 2^54800989 is an apocalyptic number.

It is an amenable number.

54800989 is a deficient number, since it is larger than the sum of its proper divisors (1).

54800989 is an equidigital number, since it uses as much as digits as its factorization.

54800989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 43.

The square root of 54800989 is about 7402.7690089587. The cubic root of 54800989 is about 379.8360072615.

The spelling of 54800989 in words is "fifty-four million, eight hundred thousand, nine hundred eighty-nine".