30055869 has 12 divisors (see below), whose sum is σ = 43482400. Its totient is φ = 20005704.

The previous prime is 30055867. The next prime is 30055873. The reversal of 30055869 is 96855003.

It is not a de Polignac number, because 30055869 - 2¹ = 30055867 is a prime.

It is a super-2 number, since 2×30055869² = 1806710522690322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30055867) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4392 + ... + 8910.

Almost surely, 2^30055869 is an apocalyptic number.

It is an amenable number.

30055869 is a deficient number, since it is larger than the sum of its proper divisors (13426531).

30055869 is a wasteful number, since it uses less digits than its factorization.

30055869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5264 (or 5261 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 30055869 is about 5482.3233213666. The cubic root of 30055869 is about 310.9160176180.

It can be divided in two parts, 300 and 55869, that added together give a square (56169 = 237²).

The spelling of 30055869 in words is "thirty million, fifty-five thousand, eight hundred sixty-nine".