53753881 has 4 divisors (see below), whose sum is σ = 56915892. Its totient is φ = 50591872.

The previous prime is 53753873. The next prime is 53753939. The reversal of 53753881 is 18835735.

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

It can be written as a sum of positive squares in 2 ways, for example, as 46512400 + 7241481 = 6820^2 + 2691^2 .

It is a cyclic number.

It is not a de Polignac number, because 53753881 - 2³ = 53753873 is a prime.

It is a super-2 number, since 2×53753881² = 5778959445124322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53753801) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1580980 + ... + 1581013.

It is an arithmetic number, because the mean of its divisors is an integer number (14228973).

Almost surely, 2^53753881 is an apocalyptic number.

It is an amenable number.

53753881 is a deficient number, since it is larger than the sum of its proper divisors (3162011).

53753881 is a wasteful number, since it uses less digits than its factorization.

53753881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3162010.

The product of its digits is 100800, while the sum is 40.

The square root of 53753881 is about 7331.7038265331. The cubic root of 53753881 is about 377.4011986511.

The spelling of 53753881 in words is "fifty-three million, seven hundred fifty-three thousand, eight hundred eighty-one".