53516331 has 48 divisors (see below), whose sum is σ = 92701440. Its totient is φ = 29367360.

The previous prime is 53516311. The next prime is 53516341. The reversal of 53516331 is 13361535.

It is not a de Polignac number, because 53516331 - 2⁵ = 53516299 is a prime.

It is a super-2 number, since 2×53516331² = 5727995367403122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53516295 and 53516304.

It is not an unprimeable number, because it can be changed into a prime (53516311) 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 47 ways as a sum of consecutive naturals, for example, 42645 + ... + 43881.

It is an arithmetic number, because the mean of its divisors is an integer number (1931280).

Almost surely, 2^53516331 is an apocalyptic number.

53516331 is a deficient number, since it is larger than the sum of its proper divisors (39185109).

53516331 is a wasteful number, since it uses less digits than its factorization.

53516331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1296 (or 1293 counting only the distinct ones).

The product of its digits is 4050, while the sum is 27.

The square root of 53516331 is about 7315.4856981611. The cubic root of 53516331 is about 376.8444385835.

Adding to 53516331 its reverse (13361535), we get a palindrome (66877866).

The spelling of 53516331 in words is "fifty-three million, five hundred sixteen thousand, three hundred thirty-one".