54467989 has 2 divisors, whose sum is σ = 54467990. Its totient is φ = 54467988.

The previous prime is 54467981. The next prime is 54468013. The reversal of 54467989 is 98976445.

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., 49702500 + 4765489 = 7050^2 + 2183^2 .

It is a cyclic number.

It is not a de Polignac number, because 54467989 - 2³ = 54467981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54467981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27233994 + 27233995.

It is an arithmetic number, because the mean of its divisors is an integer number (27233995).

Almost surely, 2^54467989 is an apocalyptic number.

It is an amenable number.

54467989 is a deficient number, since it is larger than the sum of its proper divisors (1).

54467989 is an equidigital number, since it uses as much as digits as its factorization.

54467989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2177280, while the sum is 52.

The square root of 54467989 is about 7380.2431531759. The cubic root of 54467989 is about 379.0650816592.

The spelling of 54467989 in words is "fifty-four million, four hundred sixty-seven thousand, nine hundred eighty-nine".