201533452450 has 48 divisors (see below), whose sum is σ = 409365316800. Its totient is φ = 73206824000.

The previous prime is 201533452433. The next prime is 201533452451. The reversal of 201533452450 is 54254335102.

201533452450 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×201533452450² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201533452451) 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, 322851 + ... + 712249.

It is an arithmetic number, because the mean of its divisors is an integer number (8528444100).

Almost surely, 2^201533452450 is an apocalyptic number.

201533452450 is an abundant number, since it is smaller than the sum of its proper divisors (207831864350).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201533452450 is a wasteful number, since it uses less digits than its factorization.

201533452450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390363 (or 390358 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 34.

Adding to 201533452450 its reverse (54254335102), we get a palindrome (255787787552).

The spelling of 201533452450 in words is "two hundred one billion, five hundred thirty-three million, four hundred fifty-two thousand, four hundred fifty".