30531512450 has 12 divisors (see below), whose sum is σ = 56788613250. Its totient is φ = 12212604960.

The previous prime is 30531512447. The next prime is 30531512461. The reversal of 30531512450 is 5421513503.

It can be written as a sum of positive squares in 3 ways, for example, as 23587123561 + 6944388889 = 153581^2 + 83333^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 305315075 + ... + 305315174.

Almost surely, 2^30531512450 is an apocalyptic number.

30531512450 is a deficient number, since it is larger than the sum of its proper divisors (26257100800).

30531512450 is a wasteful number, since it uses less digits than its factorization.

30531512450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610630261 (or 610630256 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 29.

The spelling of 30531512450 in words is "thirty billion, five hundred thirty-one million, five hundred twelve thousand, four hundred fifty".