53267720 has 32 divisors (see below), whose sum is σ = 130749120. Its totient is φ = 19369920.

The previous prime is 53267713. The next prime is 53267743. The reversal of 53267720 is 2776235.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60092 + ... + 60971.

It is an arithmetic number, because the mean of its divisors is an integer number (4085910).

Almost surely, 2^53267720 is an apocalyptic number.

It is an amenable number.

53267720 is an abundant number, since it is smaller than the sum of its proper divisors (77481400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53267720 is a wasteful number, since it uses less digits than its factorization.

53267720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121085 (or 121081 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 53267720 is about 7298.4738130653. The cubic root of 53267720 is about 376.2599869315.

The spelling of 53267720 in words is "fifty-three million, two hundred sixty-seven thousand, seven hundred twenty".