55712532 has 48 divisors (see below), whose sum is σ = 137112192. Its totient is φ = 17571840.

The previous prime is 55712513. The next prime is 55712539. The reversal of 55712532 is 23521755.

It is a self number, because there is not a number n which added to its sum of digits gives 55712532.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55712539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25732 + ... + 27812.

It is an arithmetic number, because the mean of its divisors is an integer number (2856504).

Almost surely, 2^55712532 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55712532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68556096).

55712532 is an abundant number, since it is smaller than the sum of its proper divisors (81399660).

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

55712532 is a wasteful number, since it uses less digits than its factorization.

55712532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2208 (or 2206 counting only the distinct ones).

The product of its digits is 10500, while the sum is 30.

The square root of 55712532 is about 7464.0827969684. The cubic root of 55712532 is about 381.9304625671.

The spelling of 55712532 in words is "fifty-five million, seven hundred twelve thousand, five hundred thirty-two".