7505500830 has 64 divisors (see below), whose sum is σ = 18803404800. Its totient is φ = 1915119360.

The previous prime is 7505500823. The next prime is 7505500841. The reversal of 7505500830 is 380055057.

It is a junction number, because it is equal to n+sod(n) for n = 7505500791 and 7505500800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37431 + ... + 128109.

It is an arithmetic number, because the mean of its divisors is an integer number (293803200).

Almost surely, 2^7505500830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7505500830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9401702400).

7505500830 is an abundant number, since it is smaller than the sum of its proper divisors (11297903970).

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

7505500830 is a wasteful number, since it uses less digits than its factorization.

7505500830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90809.

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 7505500830 is about 86634.2936140187. The cubic root of 7505500830 is about 1957.9122596644.

Adding to 7505500830 its reverse (380055057), we get a palindrome (7885555887).

The spelling of 7505500830 in words is "seven billion, five hundred five million, five hundred thousand, eight hundred thirty".