53267781 has 8 divisors (see below), whose sum is σ = 81169984. Its totient is φ = 30438720.

The previous prime is 53267759. The next prime is 53267791. The reversal of 53267781 is 18776235.

53267781 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 53267781 - 2⁷ = 53267653 is a prime.

It is a super-2 number, since 2×53267781² = 5674912985327922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53267791) 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 7 ways as a sum of consecutive naturals, for example, 1268260 + ... + 1268301.

It is an arithmetic number, because the mean of its divisors is an integer number (10146248).

Almost surely, 2^53267781 is an apocalyptic number.

It is an amenable number.

53267781 is a deficient number, since it is larger than the sum of its proper divisors (27902203).

53267781 is a wasteful number, since it uses less digits than its factorization.

53267781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2536571.

The product of its digits is 70560, while the sum is 39.

The square root of 53267781 is about 7298.4779920200. The cubic root of 53267781 is about 376.2601305573.

The spelling of 53267781 in words is "fifty-three million, two hundred sixty-seven thousand, seven hundred eighty-one".