30605355252 has 72 divisors (see below), whose sum is σ = 80363879232. Its totient is φ = 10184616000.

The previous prime is 30605355229. The next prime is 30605355257. The reversal of 30605355252 is 25255350603.

30605355252 is a `hidden beast` number, since 3 + 0 + 6 + 0 + 53 + 552 + 52 = 666.

It is a super-2 number, since 2×30605355252² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30605355257) 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, 557977 + ... + 610367.

Almost surely, 2^30605355252 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30605355252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40181939616).

30605355252 is an abundant number, since it is smaller than the sum of its proper divisors (49758523980).

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

30605355252 is a wasteful number, since it uses less digits than its factorization.

30605355252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53011 (or 52997 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 36.

The spelling of 30605355252 in words is "thirty billion, six hundred five million, three hundred fifty-five thousand, two hundred fifty-two".