53087137 has 2 divisors, whose sum is σ = 53087138. Its totient is φ = 53087136.

The previous prime is 53087093. The next prime is 53087147. The reversal of 53087137 is 73178035.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37015056 + 16072081 = 6084^2 + 4009^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53087137 is a prime.

It is a super-2 number, since 2×53087137² = 5636488229713538, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (53087147) 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, 26543568 + 26543569.

It is an arithmetic number, because the mean of its divisors is an integer number (26543569).

Almost surely, 2^53087137 is an apocalyptic number.

It is an amenable number.

53087137 is a deficient number, since it is larger than the sum of its proper divisors (1).

53087137 is an equidigital number, since it uses as much as digits as its factorization.

53087137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 53087137 is about 7286.0920252218. The cubic root of 53087137 is about 375.8343189809.

The spelling of 53087137 in words is "fifty-three million, eighty-seven thousand, one hundred thirty-seven".