30005250550 has 24 divisors (see below), whose sum is σ = 60883382232. Its totient is φ = 10911000000.

The previous prime is 30005250497. The next prime is 30005250551. The reversal of 30005250550 is 5505250003.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30005250551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27276951 + ... + 27278050.

It is an arithmetic number, because the mean of its divisors is an integer number (2536807593).

Almost surely, 2^30005250550 is an apocalyptic number.

30005250550 is an abundant number, since it is smaller than the sum of its proper divisors (30878131682).

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

30005250550 is a wasteful number, since it uses less digits than its factorization.

30005250550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54555024 (or 54555019 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 25.

The spelling of 30005250550 in words is "thirty billion, five million, two hundred fifty thousand, five hundred fifty".