203400534552 has 32 divisors (see below), whose sum is σ = 508993655280. Its totient is φ = 67734535680.

The previous prime is 203400534541. The next prime is 203400534553. The reversal of 203400534552 is 255435004302.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203400534553) 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, 4077349 + ... + 4126932.

Almost surely, 2^203400534552 is an apocalyptic number.

It is an amenable number.

203400534552 is an abundant number, since it is smaller than the sum of its proper divisors (305593120728).

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

203400534552 is a wasteful number, since it uses less digits than its factorization.

203400534552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8205323 (or 8205319 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 33.

Adding to 203400534552 its reverse (255435004302), we get a palindrome (458835538854).

The spelling of 203400534552 in words is "two hundred three billion, four hundred million, five hundred thirty-four thousand, five hundred fifty-two".