2531061212 has 48 divisors (see below), whose sum is σ = 4742388000. Its totient is φ = 1178553600.

The previous prime is 2531061209. The next prime is 2531061259. The reversal of 2531061212 is 2121601352.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1142618 + ... + 1144830.

It is an arithmetic number, because the mean of its divisors is an integer number (98799750).

Almost surely, 2^2531061212 is an apocalyptic number.

It is an amenable number.

2531061212 is a deficient number, since it is larger than the sum of its proper divisors (2211326788).

2531061212 is a wasteful number, since it uses less digits than its factorization.

2531061212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2486 (or 2484 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 2531061212 is about 50309.6532685329. The cubic root of 2531061212 is about 1362.8065622447.

Adding to 2531061212 its reverse (2121601352), we get a palindrome (4652662564).

The spelling of 2531061212 in words is "two billion, five hundred thirty-one million, sixty-one thousand, two hundred twelve".