53078913 has 54 divisors (see below), whose sum is σ = 88529922. Its totient is φ = 30533760.

The previous prime is 53078891. The next prime is 53078953. The reversal of 53078913 is 31987035.

53078913 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., 49956624 + 3122289 = 7068^2 + 1767^2 .

It is not a de Polignac number, because 53078913 - 2⁶ = 53078849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53078953) 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 in 53 ways as a sum of consecutive naturals, for example, 1712208 + ... + 1712238.

It is an arithmetic number, because the mean of its divisors is an integer number (1639443).

Almost surely, 2^53078913 is an apocalyptic number.

It is an amenable number.

53078913 is a deficient number, since it is larger than the sum of its proper divisors (35451009).

53078913 is a wasteful number, since it uses less digits than its factorization.

53078913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123 (or 70 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 53078913 is about 7285.5276404664. The cubic root of 53078913 is about 375.8149105062.

The spelling of 53078913 in words is "fifty-three million, seventy-eight thousand, nine hundred thirteen".