30240055 has 8 divisors (see below), whose sum is σ = 37865952. Its totient is φ = 23140128.

The previous prime is 30240053. The next prime is 30240061. The reversal of 30240055 is 55004203.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30240055 - 2¹ = 30240053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30240053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131364 + ... + 131593.

It is an arithmetic number, because the mean of its divisors is an integer number (4733244).

Almost surely, 2^30240055 is an apocalyptic number.

30240055 is a deficient number, since it is larger than the sum of its proper divisors (7625897).

30240055 is a wasteful number, since it uses less digits than its factorization.

30240055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262985.

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 30240055 is about 5499.0958347714. The cubic root of 30240055 is about 311.5498349914.

Adding to 30240055 its reverse (55004203), we get a palindrome (85244258).

The spelling of 30240055 in words is "thirty million, two hundred forty thousand, fifty-five".