197655857053 has 2 divisors, whose sum is σ = 197655857054. Its totient is φ = 197655857052.

The previous prime is 197655857041. The next prime is 197655857071. The reversal of 197655857053 is 350758556791.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 197240797924 + 415059129 = 444118^2 + 20373^2 .

It is a cyclic number.

It is not a de Polignac number, because 197655857053 - 2¹³ = 197655848861 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 197655856982 and 197655857000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (197655851053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98827928526 + 98827928527.

It is an arithmetic number, because the mean of its divisors is an integer number (98827928527).

Almost surely, 2^197655857053 is an apocalyptic number.

It is an amenable number.

197655857053 is a deficient number, since it is larger than the sum of its proper divisors (1).

197655857053 is an equidigital number, since it uses as much as digits as its factorization.

197655857053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39690000, while the sum is 61.

The spelling of 197655857053 in words is "one hundred ninety-seven billion, six hundred fifty-five million, eight hundred fifty-seven thousand, fifty-three".