53087655209 has 2 divisors, whose sum is σ = 53087655210. Its totient is φ = 53087655208.

The previous prime is 53087655157. The next prime is 53087655211. The reversal of 53087655209 is 90255678035.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49869589225 + 3218065984 = 223315^2 + 56728^2 .

It is a cyclic number.

It is not a de Polignac number, because 53087655209 - 2³² = 48792687913 is a prime.

Together with 53087655211, 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 (53087655289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26543827604 + 26543827605.

It is an arithmetic number, because the mean of its divisors is an integer number (26543827605).

Almost surely, 2^53087655209 is an apocalyptic number.

It is an amenable number.

53087655209 is a deficient number, since it is larger than the sum of its proper divisors (1).

53087655209 is an equidigital number, since it uses as much as digits as its factorization.

53087655209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268000, while the sum is 50.

The spelling of 53087655209 in words is "fifty-three billion, eighty-seven million, six hundred fifty-five thousand, two hundred nine".