53137489 has 2 divisors, whose sum is σ = 53137490. Its totient is φ = 53137488.

The previous prime is 53137477. The next prime is 53137507. The reversal of 53137489 is 98473135.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48441600 + 4695889 = 6960^2 + 2167^2 .

It is a cyclic number.

It is not a de Polignac number, because 53137489 - 2⁵ = 53137457 is a prime.

It is not a weakly prime, because it can be changed into another prime (53137289) 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, 26568744 + 26568745.

It is an arithmetic number, because the mean of its divisors is an integer number (26568745).

Almost surely, 2^53137489 is an apocalyptic number.

It is an amenable number.

53137489 is a deficient number, since it is larger than the sum of its proper divisors (1).

53137489 is an equidigital number, since it uses as much as digits as its factorization.

53137489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 40.

The square root of 53137489 is about 7289.5465565425. The cubic root of 53137489 is about 375.9531050048.

The spelling of 53137489 in words is "fifty-three million, one hundred thirty-seven thousand, four hundred eighty-nine".