201473525549 has 2 divisors, whose sum is σ = 201473525550. Its totient is φ = 201473525548.

The previous prime is 201473525509. The next prime is 201473525639. The reversal of 201473525549 is 945525374102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 181446181225 + 20027344324 = 425965^2 + 141518^2 .

It is a cyclic number.

It is not a de Polignac number, because 201473525549 - 2¹² = 201473521453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201473525509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100736762774 + 100736762775.

It is an arithmetic number, because the mean of its divisors is an integer number (100736762775).

Almost surely, 2^201473525549 is an apocalyptic number.

It is an amenable number.

201473525549 is a deficient number, since it is larger than the sum of its proper divisors (1).

201473525549 is an equidigital number, since it uses as much as digits as its factorization.

201473525549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512000, while the sum is 47.

The spelling of 201473525549 in words is "two hundred one billion, four hundred seventy-three million, five hundred twenty-five thousand, five hundred forty-nine".