55242430 has 16 divisors (see below), whose sum is σ = 101313504. Its totient is φ = 21679840.

The previous prime is 55242391. The next prime is 55242479. The reversal of 55242430 is 3424255.

It is a junction number, because it is equal to n+sod(n) for n = 55242395 and 55242404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51586 + ... + 52645.

It is an arithmetic number, because the mean of its divisors is an integer number (6332094).

Almost surely, 2^55242430 is an apocalyptic number.

55242430 is a deficient number, since it is larger than the sum of its proper divisors (46071074).

55242430 is a wasteful number, since it uses less digits than its factorization.

55242430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104291.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 55242430 is about 7432.5251429107. The cubic root of 55242430 is about 380.8531845469.

Adding to 55242430 its reverse (3424255), we get a palindrome (58666685).

The spelling of 55242430 in words is "fifty-five million, two hundred forty-two thousand, four hundred thirty".