52231545 has 24 divisors (see below), whose sum is σ = 91123656. Its totient is φ = 27675648.

The previous prime is 52231507. The next prime is 52231549. The reversal of 52231545 is 54513225.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 45369 + 52186176 = 213^2 + 7224^2 .

It is not a de Polignac number, because 52231545 - 2¹¹ = 52229497 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52231549) 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 23 ways as a sum of consecutive naturals, for example, 3369 + ... + 10761.

It is an arithmetic number, because the mean of its divisors is an integer number (3796819).

Almost surely, 2^52231545 is an apocalyptic number.

It is an amenable number.

52231545 is a deficient number, since it is larger than the sum of its proper divisors (38892111).

52231545 is a wasteful number, since it uses less digits than its factorization.

52231545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7561 (or 7558 counting only the distinct ones).

The product of its digits is 6000, while the sum is 27.

The square root of 52231545 is about 7227.1394756155. The cubic root of 52231545 is about 373.8042981779.

The spelling of 52231545 in words is "fifty-two million, two hundred thirty-one thousand, five hundred forty-five".