30055542 has 64 divisors (see below), whose sum is σ = 69672960. Its totient is φ = 8556800.

The previous prime is 30055537. The next prime is 30055559. The reversal of 30055542 is 24555003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78283 + ... + 78665.

It is an arithmetic number, because the mean of its divisors is an integer number (1088640).

Almost surely, 2^30055542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30055542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34836480).

30055542 is an abundant number, since it is smaller than the sum of its proper divisors (39617418).

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

30055542 is a wasteful number, since it uses less digits than its factorization.

30055542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469.

The product of its (nonzero) digits is 3000, while the sum is 24.

The square root of 30055542 is about 5482.2934981630. The cubic root of 30055542 is about 310.9148900523.

The spelling of 30055542 in words is "thirty million, fifty-five thousand, five hundred forty-two".