197452255519 has 4 divisors (see below), whose sum is σ = 198126154296. Its totient is φ = 196778356744.

The previous prime is 197452255499. The next prime is 197452255579. The reversal of 197452255519 is 915552254791.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 915552254791 = 139 ⋅6586706869.

It is a cyclic number.

It is not a de Polignac number, because 197452255519 - 2¹⁹ = 197451731231 is a prime.

It is a super-2 number, since 2×197452255519² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 197452255519.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197452255579) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 336948949 + ... + 336949534.

It is an arithmetic number, because the mean of its divisors is an integer number (49531538574).

Almost surely, 2^197452255519 is an apocalyptic number.

197452255519 is a deficient number, since it is larger than the sum of its proper divisors (673898777).

197452255519 is an equidigital number, since it uses as much as digits as its factorization.

197452255519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673898776.

The product of its digits is 5670000, while the sum is 55.

The spelling of 197452255519 in words is "one hundred ninety-seven billion, four hundred fifty-two million, two hundred fifty-five thousand, five hundred nineteen".