30552813 has 6 divisors (see below), whose sum is σ = 44131854. Its totient is φ = 20368536.

The previous prime is 30552793. The next prime is 30552829. The reversal of 30552813 is 31825503.

30552813 is a `hidden beast` number, since 30 + 552 + 81 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 30503529 + 49284 = 5523^2 + 222^2 .

It is not a de Polignac number, because 30552813 - 2¹⁶ = 30487277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30552853) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1697370 + ... + 1697387.

It is an arithmetic number, because the mean of its divisors is an integer number (7355309).

Almost surely, 2^30552813 is an apocalyptic number.

It is an amenable number.

30552813 is a deficient number, since it is larger than the sum of its proper divisors (13579041).

30552813 is a wasteful number, since it uses less digits than its factorization.

30552813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3394763 (or 3394760 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 30552813 is about 5527.4599048749. The cubic root of 30552813 is about 312.6202221167.

The spelling of 30552813 in words is "thirty million, five hundred fifty-two thousand, eight hundred thirteen".