52729632 has 36 divisors (see below), whose sum is σ = 149950710. Its totient is φ = 17576448.

The previous prime is 52729619. The next prime is 52729637. The reversal of 52729632 is 23692725.

It can be written as a sum of positive squares in only one way, i.e., 49617936 + 3111696 = 7044^2 + 1764^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (52729637) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 91257 + ... + 91832.

Almost surely, 2^52729632 is an apocalyptic number.

It is an amenable number.

52729632 is an abundant number, since it is smaller than the sum of its proper divisors (97221078).

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

52729632 is a wasteful number, since it uses less digits than its factorization.

52729632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183105 (or 183094 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 52729632 is about 7261.5171968398. The cubic root of 52729632 is about 374.9887569963.

It can be divided in two parts, 52729 and 632, that added together give a square (53361 = 231²).

The spelling of 52729632 in words is "fifty-two million, seven hundred twenty-nine thousand, six hundred thirty-two".