53045531 has 32 divisors (see below), whose sum is σ = 69662208. Its totient is φ = 39191040.

The previous prime is 53045519. The next prime is 53045537. The reversal of 53045531 is 13554035.

53045531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 53045531 - 2⁶ = 53045467 is a prime.

It is a super-2 number, since 2×53045531² = 5627656718143922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 53045531.

It is not an unprimeable number, because it can be changed into a prime (53045537) 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 31 ways as a sum of consecutive naturals, for example, 122291 + ... + 122723.

It is an arithmetic number, because the mean of its divisors is an integer number (2176944).

Almost surely, 2^53045531 is an apocalyptic number.

53045531 is a deficient number, since it is larger than the sum of its proper divisors (16616677).

53045531 is a wasteful number, since it uses less digits than its factorization.

53045531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 53045531 is about 7283.2362998876. The cubic root of 53045531 is about 375.7361090667.

Adding to 53045531 its reverse (13554035), we get a palindrome (66599566).

The spelling of 53045531 in words is "fifty-three million, forty-five thousand, five hundred thirty-one".