30028002550 has 48 divisors (see below), whose sum is σ = 68741037792. Its totient is φ = 9503366400.

The previous prime is 30028002503. The next prime is 30028002559. The reversal of 30028002550 is 5520082003.

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 (30028002559) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3295231 + ... + 3304330.

It is an arithmetic number, because the mean of its divisors is an integer number (1432104954).

Almost surely, 2^30028002550 is an apocalyptic number.

30028002550 is an abundant number, since it is smaller than the sum of its proper divisors (38713035242).

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

30028002550 is a wasteful number, since it uses less digits than its factorization.

30028002550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6599593 (or 6599588 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 30028002550 its reverse (5520082003), we get a palindrome (35548084553).

The spelling of 30028002550 in words is "thirty billion, twenty-eight million, two thousand, five hundred fifty".