30625000000 has 231 divisors, whose sum is σ = 88366697409. Its totient is φ = 10500000000.

The previous prime is 30624999973. The next prime is 30625000001. The reversal of 30625000000 is 52603.

The square root of 30625000000 is 175000.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 5 ways, for example, as 176145984 + 30448854016 = 13272^2 + 174496^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30625000001) 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 in 32 ways as a sum of consecutive naturals, for example, 4374999997 + ... + 4375000003.

Almost surely, 2^30625000000 is an apocalyptic number.

30625000000 is the 175000-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30625000000

30625000000 is an abundant number, since it is smaller than the sum of its proper divisors (57741697409).

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

30625000000 is an frugal number, since it uses more digits than its factorization.

30625000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76 (or 14 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 16.

Multiplying 30625000000 by its sum of digits (16), we get a square (490000000000 = 700000²).

30625000000 divided by its sum of digits (16) gives a square (1914062500 = 43750²).

Adding to 30625000000 its reverse (52603), we get a palindrome (30625052603).

The spelling of 30625000000 in words is "thirty billion, six hundred twenty-five million", and thus it is an aban number.