30502578052 has 12 divisors (see below), whose sum is σ = 53403011676. Its totient is φ = 15244574720.

The previous prime is 30502578031. The next prime is 30502578121. The reversal of 30502578052 is 25087520503.

It can be written as a sum of positive squares in 2 ways, for example, as 25939035136 + 4563542916 = 161056^2 + 67554^2 .

It is a super-2 number, since 2×30502578052² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1668349 + ... + 1686532.

It is an arithmetic number, because the mean of its divisors is an integer number (4450250973).

Almost surely, 2^30502578052 is an apocalyptic number.

It is an amenable number.

30502578052 is a deficient number, since it is larger than the sum of its proper divisors (22900433624).

30502578052 is a wasteful number, since it uses less digits than its factorization.

30502578052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3357158 (or 3357156 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 37.

The spelling of 30502578052 in words is "thirty billion, five hundred two million, five hundred seventy-eight thousand, fifty-two".