53011131 has 16 divisors (see below), whose sum is σ = 72551424. Its totient is φ = 34411104.

The previous prime is 53011129. The next prime is 53011139. The reversal of 53011131 is 13111035.

It is not a de Polignac number, because 53011131 - 2¹ = 53011129 is a prime.

It is a super-2 number, since 2×53011131² = 5620360019798322, 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 53011131.

It is not an unprimeable number, because it can be changed into a prime (53011139) 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, 77965 + ... + 78641.

It is an arithmetic number, because the mean of its divisors is an integer number (4534464).

Almost surely, 2^53011131 is an apocalyptic number.

53011131 is a deficient number, since it is larger than the sum of its proper divisors (19540293).

53011131 is a wasteful number, since it uses less digits than its factorization.

53011131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1330.

The product of its (nonzero) digits is 45, while the sum is 15.

The square root of 53011131 is about 7280.8743293646. The cubic root of 53011131 is about 375.6548699441.

Adding to 53011131 its reverse (13111035), we get a palindrome (66122166).

The spelling of 53011131 in words is "fifty-three million, eleven thousand, one hundred thirty-one".