53078489 has 2 divisors, whose sum is σ = 53078490. Its totient is φ = 53078488.

The previous prime is 53078483. The next prime is 53078491. The reversal of 53078489 is 98487035.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52998400 + 80089 = 7280^2 + 283^2 .

It is a cyclic number.

It is not a de Polignac number, because 53078489 - 2¹² = 53074393 is a prime.

Together with 53078491, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53078483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26539244 + 26539245.

It is an arithmetic number, because the mean of its divisors is an integer number (26539245).

Almost surely, 2^53078489 is an apocalyptic number.

It is an amenable number.

53078489 is a deficient number, since it is larger than the sum of its proper divisors (1).

53078489 is an equidigital number, since it uses as much as digits as its factorization.

53078489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 53078489 is about 7285.4985416236. The cubic root of 53078489 is about 375.8139098204.

The spelling of 53078489 in words is "fifty-three million, seventy-eight thousand, four hundred eighty-nine".