202540450553 has 8 divisors (see below), whose sum is σ = 231479389440. Its totient is φ = 173602658880.

The previous prime is 202540450529. The next prime is 202540450561. The reversal of 202540450553 is 355054045202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 202540450553 - 2⁸ = 202540450297 is a prime.

It is a super-2 number, since 2×202540450553² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202540450573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132368 + ... + 650078.

It is an arithmetic number, because the mean of its divisors is an integer number (28934923680).

Almost surely, 2^202540450553 is an apocalyptic number.

It is an amenable number.

202540450553 is a deficient number, since it is larger than the sum of its proper divisors (28938938887).

202540450553 is an equidigital number, since it uses as much as digits as its factorization.

202540450553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573607.

The product of its (nonzero) digits is 120000, while the sum is 35.

Adding to 202540450553 its reverse (355054045202), we get a palindrome (557594495755).

The spelling of 202540450553 in words is "two hundred two billion, five hundred forty million, four hundred fifty thousand, five hundred fifty-three".