52125531 has 16 divisors (see below), whose sum is σ = 74256000. Its totient is φ = 32427648.

The previous prime is 52125527. The next prime is 52125599. The reversal of 52125531 is 13552125.

It is a happy number.

It is not a de Polignac number, because 52125531 - 2² = 52125527 is a prime.

It is a super-2 number, since 2×52125531² = 5434141964063922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52123531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3006 + ... + 10643.

It is an arithmetic number, because the mean of its divisors is an integer number (4641000).

Almost surely, 2^52125531 is an apocalyptic number.

52125531 is a deficient number, since it is larger than the sum of its proper divisors (22130469).

52125531 is a wasteful number, since it uses less digits than its factorization.

52125531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13738.

The product of its digits is 1500, while the sum is 24.

The square root of 52125531 is about 7219.8013130556. The cubic root of 52125531 is about 373.5512242270.

Adding to 52125531 its reverse (13552125), we get a palindrome (65677656).

The spelling of 52125531 in words is "fifty-two million, one hundred twenty-five thousand, five hundred thirty-one".