532512640 has 64 divisors (see below), whose sum is σ = 1388787120. Its totient is φ = 193638400.

The previous prime is 532512611. The next prime is 532512661. The reversal of 532512640 is 46215235.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 532512599 and 532512608.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30781 + ... + 44860.

Almost surely, 2^532512640 is an apocalyptic number.

It is an amenable number.

532512640 is an abundant number, since it is smaller than the sum of its proper divisors (856274480).

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

532512640 is a wasteful number, since it uses less digits than its factorization.

532512640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75671 (or 75659 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 532512640 is about 23076.2353948819. The cubic root of 532512640 is about 810.5440839772.

Adding to 532512640 its reverse (46215235), we get a palindrome (578727875).

The spelling of 532512640 in words is "five hundred thirty-two million, five hundred twelve thousand, six hundred forty".