52978135 has 8 divisors (see below), whose sum is σ = 72655776. Its totient is φ = 36327840.

The previous prime is 52978127. The next prime is 52978147. The reversal of 52978135 is 53187925.

52978135 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 52978135 - 2³ = 52978127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 756796 + ... + 756865.

It is an arithmetic number, because the mean of its divisors is an integer number (9081972).

Almost surely, 2^52978135 is an apocalyptic number.

52978135 is a deficient number, since it is larger than the sum of its proper divisors (19677641).

52978135 is a wasteful number, since it uses less digits than its factorization.

52978135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1513673.

The product of its digits is 75600, while the sum is 40.

The square root of 52978135 is about 7278.6080400033. The cubic root of 52978135 is about 375.5769134819.

The spelling of 52978135 in words is "fifty-two million, nine hundred seventy-eight thousand, one hundred thirty-five".