54632989 has 2 divisors, whose sum is σ = 54632990. Its totient is φ = 54632988.

The previous prime is 54632971. The next prime is 54633031. The reversal of 54632989 is 98923645.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49420900 + 5212089 = 7030^2 + 2283^2 .

It is a cyclic number.

It is not a de Polignac number, because 54632989 - 2⁹ = 54632477 is a prime.

It is a super-3 number, since 3×54632989³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54632959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27316494 + 27316495.

It is an arithmetic number, because the mean of its divisors is an integer number (27316495).

Almost surely, 2^54632989 is an apocalyptic number.

It is an amenable number.

54632989 is a deficient number, since it is larger than the sum of its proper divisors (1).

54632989 is an equidigital number, since it uses as much as digits as its factorization.

54632989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 466560, while the sum is 46.

The square root of 54632989 is about 7391.4131936998. The cubic root of 54632989 is about 379.4474633666.

The spelling of 54632989 in words is "fifty-four million, six hundred thirty-two thousand, nine hundred eighty-nine".