54919489 has 2 divisors, whose sum is σ = 54919490. Its totient is φ = 54919488.

The previous prime is 54919451. The next prime is 54919511. The reversal of 54919489 is 98491945.

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., 49000000 + 5919489 = 7000^2 + 2433^2 .

It is a cyclic number.

It is not a de Polignac number, because 54919489 - 2⁹ = 54918977 is a prime.

It is a super-2 number, since 2×54919489² = 6032300544042242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (54919429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27459744 + 27459745.

It is an arithmetic number, because the mean of its divisors is an integer number (27459745).

Almost surely, 2^54919489 is an apocalyptic number.

It is an amenable number.

54919489 is a deficient number, since it is larger than the sum of its proper divisors (1).

54919489 is an equidigital number, since it uses as much as digits as its factorization.

54919489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 466560, while the sum is 49.

The square root of 54919489 is about 7410.7684486833. The cubic root of 54919489 is about 380.1095921209.

The spelling of 54919489 in words is "fifty-four million, nine hundred nineteen thousand, four hundred eighty-nine".