2531531032 has 8 divisors (see below), whose sum is σ = 4746620700. Its totient is φ = 1265765512.

The previous prime is 2531531029. The next prime is 2531531039. The reversal of 2531531032 is 2301351352.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 2531530988 and 2531531006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2531531039) by changing a digit.

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 as a sum of consecutive naturals, namely, 158220682 + ... + 158220697.

Almost surely, 2^2531531032 is an apocalyptic number.

It is an amenable number.

2531531032 is a deficient number, since it is larger than the sum of its proper divisors (2215089668).

2531531032 is a wasteful number, since it uses less digits than its factorization.

2531531032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316441385 (or 316441381 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 2531531032 is about 50314.3223346991. The cubic root of 2531531032 is about 1362.8908792055.

Adding to 2531531032 its reverse (2301351352), we get a palindrome (4832882384).

The spelling of 2531531032 in words is "two billion, five hundred thirty-one million, five hundred thirty-one thousand, thirty-two".