53453512 has 24 divisors (see below), whose sum is σ = 116589510. Its totient is φ = 22908480.

The previous prime is 53453509. The next prime is 53453513. The reversal of 53453512 is 21535435.

53453512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 34739236 + 18714276 = 5894^2 + 4326^2 .

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (53453513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 67789 + ... + 68572.

Almost surely, 2^53453512 is an apocalyptic number.

It is an amenable number.

53453512 is an abundant number, since it is smaller than the sum of its proper divisors (63135998).

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

53453512 is a wasteful number, since it uses less digits than its factorization.

53453512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136381 (or 136370 counting only the distinct ones).

The product of its digits is 9000, while the sum is 28.

The square root of 53453512 is about 7311.1908742694. The cubic root of 53453512 is about 376.6969305919.

Adding to 53453512 its reverse (21535435), we get a palindrome (74988947).

The spelling of 53453512 in words is "fifty-three million, four hundred fifty-three thousand, five hundred twelve".