54992489 has 2 divisors, whose sum is σ = 54992490. Its totient is φ = 54992488.

The previous prime is 54992459. The next prime is 54992503. The reversal of 54992489 is 98429945.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42510400 + 12482089 = 6520^2 + 3533^2 .

It is a cyclic number.

It is not a de Polignac number, because 54992489 - 2¹² = 54988393 is a prime.

It is not a weakly prime, because it can be changed into another prime (54992459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27496244 + 27496245.

It is an arithmetic number, because the mean of its divisors is an integer number (27496245).

Almost surely, 2^54992489 is an apocalyptic number.

It is an amenable number.

54992489 is a deficient number, since it is larger than the sum of its proper divisors (1).

54992489 is an equidigital number, since it uses as much as digits as its factorization.

54992489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 933120, while the sum is 50.

The square root of 54992489 is about 7415.6920782891. The cubic root of 54992489 is about 380.2779337875.

The spelling of 54992489 in words is "fifty-four million, nine hundred ninety-two thousand, four hundred eighty-nine".