53305881 has 16 divisors (see below), whose sum is σ = 74908800. Its totient is φ = 33651200.

The previous prime is 53305823. The next prime is 53305907. The reversal of 53305881 is 18850335.

It is a cyclic number.

It is not a de Polignac number, because 53305881 - 2⁷ = 53305753 is a prime.

It is a super-2 number, since 2×53305881² = 5683033898372322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53305801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3145 + ... + 10793.

It is an arithmetic number, because the mean of its divisors is an integer number (4681800).

Almost surely, 2^53305881 is an apocalyptic number.

It is an amenable number.

53305881 is a deficient number, since it is larger than the sum of its proper divisors (21602919).

53305881 is a wasteful number, since it uses less digits than its factorization.

53305881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7776.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 53305881 is about 7301.0876586985. The cubic root of 53305881 is about 376.3498163812.

It can be divided in two parts, 5330 and 5881, that added together give a palindrome (11211).

The spelling of 53305881 in words is "fifty-three million, three hundred five thousand, eight hundred eighty-one".