53129332 has 6 divisors (see below), whose sum is σ = 92976338. Its totient is φ = 26564664.

The previous prime is 53129309. The next prime is 53129341. The reversal of 53129332 is 23392135.

It can be written as a sum of positive squares in only one way, i.e., 51208336 + 1920996 = 7156^2 + 1386^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 53129332.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6641163 + ... + 6641170.

Almost surely, 2^53129332 is an apocalyptic number.

It is an amenable number.

53129332 is a deficient number, since it is larger than the sum of its proper divisors (39847006).

53129332 is a wasteful number, since it uses less digits than its factorization.

53129332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13282337 (or 13282335 counting only the distinct ones).

The product of its digits is 4860, while the sum is 28.

The square root of 53129332 is about 7288.9870352471. The cubic root of 53129332 is about 375.9338668206.

The spelling of 53129332 in words is "fifty-three million, one hundred twenty-nine thousand, three hundred thirty-two".