30145520250 has 128 divisors (see below), whose sum is σ = 83926402560. Its totient is φ = 8007768000.

The previous prime is 30145520219. The next prime is 30145520291. The reversal of 30145520250 is 5202554103.

It is a happy number.

30145520250 is a `hidden beast` number, since 3 + 0 + 1 + 455 + 202 + 5 + 0 = 666.

It is a super-2 number, since 2×30145520250² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1766760 + ... + 1783740.

It is an arithmetic number, because the mean of its divisors is an integer number (655675020).

Almost surely, 2^30145520250 is an apocalyptic number.

30145520250 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 30145520250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41963201280).

30145520250 is an abundant number, since it is smaller than the sum of its proper divisors (53780882310).

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

30145520250 is a wasteful number, since it uses less digits than its factorization.

30145520250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17270 (or 17254 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The spelling of 30145520250 in words is "thirty billion, one hundred forty-five million, five hundred twenty thousand, two hundred fifty".