30355052250 has 64 divisors (see below), whose sum is σ = 75829777920. Its totient is φ = 8087889600.

The previous prime is 30355052183. The next prime is 30355052279. The reversal of 30355052250 is 5225055303.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon 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, 911391 + ... + 944109.

It is an arithmetic number, because the mean of its divisors is an integer number (1184840280).

Almost surely, 2^30355052250 is an apocalyptic number.

30355052250 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30355052250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37914888960).

30355052250 is an abundant number, since it is smaller than the sum of its proper divisors (45474725670).

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

30355052250 is a wasteful number, since it uses less digits than its factorization.

30355052250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33976 (or 33966 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 30.

The spelling of 30355052250 in words is "thirty billion, three hundred fifty-five million, fifty-two thousand, two hundred fifty".