13553063450 has 24 divisors (see below), whose sum is σ = 25211777340. Its totient is φ = 5420563200.

The previous prime is 13553063449. The next prime is 13553063453. The reversal of 13553063450 is 5436035531.

It can be written as a sum of positive squares in 6 ways, for example, as 8922124849 + 4630938601 = 94457^2 + 68051^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13553063450.

It is not an unprimeable number, because it can be changed into a prime (13553063453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 731906 + ... + 750194.

Almost surely, 2^13553063450 is an apocalyptic number.

13553063450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13553063450 is a deficient number, since it is larger than the sum of its proper divisors (11658713890).

13553063450 is a wasteful number, since it uses less digits than its factorization.

13553063450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33122 (or 33117 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 35.

Adding to 13553063450 its reverse (5436035531), we get a palindrome (18989098981).

The spelling of 13553063450 in words is "thirteen billion, five hundred fifty-three million, sixty-three thousand, four hundred fifty".