53687805371 has 2 divisors, whose sum is σ = 53687805372. Its totient is φ = 53687805370.

The previous prime is 53687805343. The next prime is 53687805419. The reversal of 53687805371 is 17350878635.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53687805371 is a prime.

It is not a weakly prime, because it can be changed into another prime (53687805341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26843902685 + 26843902686.

It is an arithmetic number, because the mean of its divisors is an integer number (26843902686).

Almost surely, 2^53687805371 is an apocalyptic number.

53687805371 is a deficient number, since it is larger than the sum of its proper divisors (1).

53687805371 is an equidigital number, since it uses as much as digits as its factorization.

53687805371 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4233600, while the sum is 53.

The spelling of 53687805371 in words is "fifty-three billion, six hundred eighty-seven million, eight hundred five thousand, three hundred seventy-one".