53351331 has 16 divisors (see below), whose sum is σ = 78375168. Its totient is φ = 32012000.

The previous prime is 53351327. The next prime is 53351339. The reversal of 53351331 is 13315335.

53351331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 53351331 - 2² = 53351327 is a prime.

It is a super-2 number, since 2×53351331² = 5692729038943122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53351339) 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 15 ways as a sum of consecutive naturals, for example, 4671 + ... + 11336.

It is an arithmetic number, because the mean of its divisors is an integer number (4898448).

Almost surely, 2^53351331 is an apocalyptic number.

53351331 is a deficient number, since it is larger than the sum of its proper divisors (25023837).

53351331 is a wasteful number, since it uses less digits than its factorization.

53351331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16122.

The product of its digits is 2025, while the sum is 24.

The square root of 53351331 is about 7304.1995454670. The cubic root of 53351331 is about 376.4567479225.

Adding to 53351331 its reverse (13315335), we get a palindrome (66666666).

It can be divided in two parts, 5335 and 1331, that added together give a palindrome (6666).

The spelling of 53351331 in words is "fifty-three million, three hundred fifty-one thousand, three hundred thirty-one".