53443172 has 48 divisors (see below), whose sum is σ = 105099120. Its totient is φ = 23654400.

The previous prime is 53443147. The next prime is 53443211. The reversal of 53443172 is 27134435.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 65536 + 53377636 = 256^2 + 7306^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80522 + ... + 81182.

It is an arithmetic number, because the mean of its divisors is an integer number (2189565).

Almost surely, 2^53443172 is an apocalyptic number.

It is an amenable number.

53443172 is a deficient number, since it is larger than the sum of its proper divisors (51655948).

53443172 is a wasteful number, since it uses less digits than its factorization.

53443172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752 (or 750 counting only the distinct ones).

The product of its digits is 10080, while the sum is 29.

The square root of 53443172 is about 7310.4837049268. The cubic root of 53443172 is about 376.6726397187.

The spelling of 53443172 in words is "fifty-three million, four hundred forty-three thousand, one hundred seventy-two".