5234545640 has 16 divisors (see below), whose sum is σ = 11777727780. Its totient is φ = 2093818240.

The previous prime is 5234545621. The next prime is 5234545663. The reversal of 5234545640 is 465454325.

It can be written as a sum of positive squares in 2 ways, for example, as 5012356804 + 222188836 = 70798^2 + 14906^2 .

It is a junction number, because it is equal to n+sod(n) for n = 5234545594 and 5234545603.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 65431781 + ... + 65431860.

Almost surely, 2^5234545640 is an apocalyptic number.

It is an amenable number.

5234545640 is an abundant number, since it is smaller than the sum of its proper divisors (6543182140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5234545640 is a wasteful number, since it uses less digits than its factorization.

5234545640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130863652 (or 130863648 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 38.

The square root of 5234545640 is about 72350.1599168931. The cubic root of 5234545640 is about 1736.3062568903.

Adding to 5234545640 its reverse (465454325), we get a palindrome (5699999965).

The spelling of 5234545640 in words is "five billion, two hundred thirty-four million, five hundred forty-five thousand, six hundred forty".