53128258 has 8 divisors (see below), whose sum is σ = 80514252. Its totient is φ = 26290176.

The previous prime is 53128241. The next prime is 53128259. The reversal of 53128258 is 85282135.

It can be written as a sum of positive squares in 2 ways, for example, as 53100369 + 27889 = 7287^2 + 167^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×53128258² = 5645223596229128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53128259) 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 3 ways as a sum of consecutive naturals, for example, 136735 + ... + 137122.

Almost surely, 2^53128258 is an apocalyptic number.

53128258 is a deficient number, since it is larger than the sum of its proper divisors (27385994).

53128258 is a wasteful number, since it uses less digits than its factorization.

53128258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273956.

The product of its digits is 19200, while the sum is 34.

The square root of 53128258 is about 7288.9133620863. The cubic root of 53128258 is about 375.9313336581.

The spelling of 53128258 in words is "fifty-three million, one hundred twenty-eight thousand, two hundred fifty-eight".