53641318537 has 2 divisors, whose sum is σ = 53641318538. Its totient is φ = 53641318536.

The previous prime is 53641318477. The next prime is 53641318553. The reversal of 53641318537 is 73581314635.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52626195216 + 1015123321 = 229404^2 + 31861^2 .

It is a cyclic number.

It is not a de Polignac number, because 53641318537 - 2¹⁵ = 53641285769 is a prime.

It is not a weakly prime, because it can be changed into another prime (53641318337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26820659268 + 26820659269.

It is an arithmetic number, because the mean of its divisors is an integer number (26820659269).

Almost surely, 2^53641318537 is an apocalyptic number.

It is an amenable number.

53641318537 is a deficient number, since it is larger than the sum of its proper divisors (1).

53641318537 is an equidigital number, since it uses as much as digits as its factorization.

53641318537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 907200, while the sum is 46.

The spelling of 53641318537 in words is "fifty-three billion, six hundred forty-one million, three hundred eighteen thousand, five hundred thirty-seven".