47305530 has 48 divisors (see below), whose sum is σ = 123425640. Its totient is φ = 12570624.

The previous prime is 47305523. The next prime is 47305553. The reversal of 47305530 is 3550374.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 29387241 + 17918289 = 5421^2 + 4233^2 .

It is a junction number, because it is equal to n+sod(n) for n = 47305494 and 47305503.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31026 + ... + 32514.

Almost surely, 2^47305530 is an apocalyptic number.

47305530 is an abundant number, since it is smaller than the sum of its proper divisors (76120110).

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

47305530 is a wasteful number, since it uses less digits than its factorization.

47305530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1855 (or 1852 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 27.

The square root of 47305530 is about 6877.9015695196. The cubic root of 47305530 is about 361.6629087318.

The spelling of 47305530 in words is "forty-seven million, three hundred five thousand, five hundred thirty".