53147532 has 12 divisors (see below), whose sum is σ = 124010936. Its totient is φ = 17715840.

The previous prime is 53147477. The next prime is 53147537. The reversal of 53147532 is 23574135.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 53147532.

It is not an unprimeable number, because it can be changed into a prime (53147537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2214469 + ... + 2214492.

Almost surely, 2^53147532 is an apocalyptic number.

It is an amenable number.

53147532 is an abundant number, since it is smaller than the sum of its proper divisors (70863404).

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

53147532 is a wasteful number, since it uses less digits than its factorization.

53147532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4428968 (or 4428966 counting only the distinct ones).

The product of its digits is 12600, while the sum is 30.

The square root of 53147532 is about 7290.2353871463. The cubic root of 53147532 is about 375.9767885928.

The spelling of 53147532 in words is "fifty-three million, one hundred forty-seven thousand, five hundred thirty-two".