53553121450 has 24 divisors (see below), whose sum is σ = 99618817068. Its totient is φ = 21419095680.

The previous prime is 53553121439. The next prime is 53553121451. The reversal of 53553121450 is 5412135535.

It can be written as a sum of positive squares in 6 ways, for example, as 40907894049 + 12645227401 = 202257^2 + 112451^2 .

It is not an unprimeable number, because it can be changed into a prime (53553121451) 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, 506374 + ... + 602926.

Almost surely, 2^53553121450 is an apocalyptic number.

53553121450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

53553121450 is a deficient number, since it is larger than the sum of its proper divisors (46065695618).

53553121450 is a wasteful number, since it uses less digits than its factorization.

53553121450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107658 (or 107653 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 34.

Adding to 53553121450 its reverse (5412135535), we get a palindrome (58965256985).

The spelling of 53553121450 in words is "fifty-three billion, five hundred fifty-three million, one hundred twenty-one thousand, four hundred fifty".