53613278 has 4 divisors (see below), whose sum is σ = 80419920. Its totient is φ = 26806638.

The previous prime is 53613247. The next prime is 53613283. The reversal of 53613278 is 87231635.

53613278 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

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 as a sum of consecutive naturals, namely, 13403318 + ... + 13403321.

It is an arithmetic number, because the mean of its divisors is an integer number (20104980).

Almost surely, 2^53613278 is an apocalyptic number.

53613278 is a deficient number, since it is larger than the sum of its proper divisors (26806642).

53613278 is a wasteful number, since it uses less digits than its factorization.

53613278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26806641.

The product of its digits is 30240, while the sum is 35.

The square root of 53613278 is about 7322.1088492319. The cubic root of 53613278 is about 377.0718576310.

The spelling of 53613278 in words is "fifty-three million, six hundred thirteen thousand, two hundred seventy-eight".