201024554553 has 24 divisors (see below), whose sum is σ = 298637573000. Its totient is φ = 130210239744.

The previous prime is 201024554543. The next prime is 201024554587. The reversal of 201024554553 is 355455420102.

201024554553 is a `hidden beast` number, since 2 + 0 + 10 + 2 + 45 + 54 + 553 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 11692529424 + 189332025129 = 108132^2 + 435123^2 .

It is not a de Polignac number, because 201024554553 - 2⁴ = 201024554537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201024554543) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 189628 + ... + 661821.

Almost surely, 2^201024554553 is an apocalyptic number.

It is an amenable number.

201024554553 is a deficient number, since it is larger than the sum of its proper divisors (97613018447).

201024554553 is a wasteful number, since it uses less digits than its factorization.

201024554553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852201 (or 852198 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

Adding to 201024554553 its reverse (355455420102), we get a palindrome (556479974655).

The spelling of 201024554553 in words is "two hundred one billion, twenty-four million, five hundred fifty-four thousand, five hundred fifty-three".