53378771 has 4 divisors (see below), whose sum is σ = 56188200. Its totient is φ = 50569344.

The previous prime is 53378749. The next prime is 53378777. The reversal of 53378771 is 17787335.

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

It is a cyclic number.

It is not a de Polignac number, because 53378771 - 2¹⁰ = 53377747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53378777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1404686 + ... + 1404723.

It is an arithmetic number, because the mean of its divisors is an integer number (14047050).

Almost surely, 2^53378771 is an apocalyptic number.

53378771 is a deficient number, since it is larger than the sum of its proper divisors (2809429).

53378771 is a wasteful number, since it uses less digits than its factorization.

53378771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2809428.

The product of its digits is 123480, while the sum is 41.

The square root of 53378771 is about 7306.0776754699. The cubic root of 53378771 is about 376.5212774133.

The spelling of 53378771 in words is "fifty-three million, three hundred seventy-eight thousand, seven hundred seventy-one".