30782475252 has 48 divisors (see below), whose sum is σ = 80334979200. Its totient is φ = 10192867200.

The previous prime is 30782475223. The next prime is 30782475257. The reversal of 30782475252 is 25257428703.

30782475252 is a `hidden beast` number, since 3 + 0 + 7 + 82 + 47 + 525 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 30782475198 and 30782475207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30782475257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 927477 + ... + 960092.

It is an arithmetic number, because the mean of its divisors is an integer number (1673645400).

Almost surely, 2^30782475252 is an apocalyptic number.

It is an amenable number.

30782475252 is an abundant number, since it is smaller than the sum of its proper divisors (49552503948).

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

30782475252 is a wasteful number, since it uses less digits than its factorization.

30782475252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1887733 (or 1887725 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 45.

The spelling of 30782475252 in words is "thirty billion, seven hundred eighty-two million, four hundred seventy-five thousand, two hundred fifty-two".