55242345 has 8 divisors (see below), whose sum is σ = 88387776. Its totient is φ = 29462576.

The previous prime is 55242337. The next prime is 55242347. The reversal of 55242345 is 54324255.

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 55242345 - 2³ = 55242337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55242347) 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, 1841397 + ... + 1841426.

It is an arithmetic number, because the mean of its divisors is an integer number (11048472).

Almost surely, 2^55242345 is an apocalyptic number.

It is an amenable number.

55242345 is a deficient number, since it is larger than the sum of its proper divisors (33145431).

55242345 is a wasteful number, since it uses less digits than its factorization.

55242345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3682831.

The product of its digits is 24000, while the sum is 30.

The square root of 55242345 is about 7432.5194247980. The cubic root of 55242345 is about 380.8529892107.

The spelling of 55242345 in words is "fifty-five million, two hundred forty-two thousand, three hundred forty-five".