55727572 has 6 divisors (see below), whose sum is σ = 97523258. Its totient is φ = 27863784.

The previous prime is 55727521. The next prime is 55727579. The reversal of 55727572 is 27572755.

It is a happy number.

55727572 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., 46703556 + 9024016 = 6834^2 + 3004^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55727579) 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 as a sum of consecutive naturals, namely, 6965943 + ... + 6965950.

Almost surely, 2^55727572 is an apocalyptic number.

It is an amenable number.

55727572 is a deficient number, since it is larger than the sum of its proper divisors (41795686).

55727572 is a wasteful number, since it uses less digits than its factorization.

55727572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13931897 (or 13931895 counting only the distinct ones).

The product of its digits is 171500, while the sum is 40.

The square root of 55727572 is about 7465.0902204863. The cubic root of 55727572 is about 381.9648277696.

The spelling of 55727572 in words is "fifty-five million, seven hundred twenty-seven thousand, five hundred seventy-two".