55242426 has 8 divisors (see below), whose sum is σ = 110484864. Its totient is φ = 18414140.

The previous prime is 55242391. The next prime is 55242479. The reversal of 55242426 is 62424255.

It is a happy number.

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

55242426 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 55242393 and 55242402.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4603530 + ... + 4603541.

It is an arithmetic number, because the mean of its divisors is an integer number (13810608).

Almost surely, 2^55242426 is an apocalyptic number.

55242426 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

55242426 is a wasteful number, since it uses less digits than its factorization.

55242426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9207076.

The product of its digits is 19200, while the sum is 30.

The square root of 55242426 is about 7432.5248738232. The cubic root of 55242426 is about 380.8531753547.

The spelling of 55242426 in words is "fifty-five million, two hundred forty-two thousand, four hundred twenty-six".