55394242 has 8 divisors (see below), whose sum is σ = 83122956. Its totient is φ = 27686592.

The previous prime is 55394231. The next prime is 55394243. The reversal of 55394242 is 24249355.

It can be written as a sum of positive squares in 2 ways, for example, as 38180041 + 17214201 = 6179^2 + 4149^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 55394198 and 55394207.

It is not an unprimeable number, because it can be changed into a prime (55394243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7518 + ... + 12934.

Almost surely, 2^55394242 is an apocalyptic number.

55394242 is a deficient number, since it is larger than the sum of its proper divisors (27728714).

55394242 is a wasteful number, since it uses less digits than its factorization.

55394242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10532.

The product of its digits is 43200, while the sum is 34.

The square root of 55394242 is about 7442.7308160379. The cubic root of 55394242 is about 381.2017403037.

The spelling of 55394242 in words is "fifty-five million, three hundred ninety-four thousand, two hundred forty-two".