52645225231 has 4 divisors (see below), whose sum is σ = 52648847392. Its totient is φ = 52641603072.

The previous prime is 52645225211. The next prime is 52645225249. The reversal of 52645225231 is 13252254625.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52645225231 - 2⁷ = 52645225103 is a prime.

It is a super-2 number, since 2×52645225231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52645225211) 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 3 ways as a sum of consecutive naturals, for example, 1789191 + ... + 1818376.

It is an arithmetic number, because the mean of its divisors is an integer number (13162211848).

Almost surely, 2^52645225231 is an apocalyptic number.

52645225231 is a deficient number, since it is larger than the sum of its proper divisors (3622161).

52645225231 is a wasteful number, since it uses less digits than its factorization.

52645225231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3622160.

The product of its digits is 144000, while the sum is 37.

Adding to 52645225231 its reverse (13252254625), we get a palindrome (65897479856).

The spelling of 52645225231 in words is "fifty-two billion, six hundred forty-five million, two hundred twenty-five thousand, two hundred thirty-one".