55242419 has 8 divisors (see below), whose sum is σ = 57311760. Its totient is φ = 53184096.

The previous prime is 55242391. The next prime is 55242479. The reversal of 55242419 is 91424255.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55242419 is a prime.

It is a super-2 number, since 2×55242419² = 6103449713943122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55242479) 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, 8264 + ... + 13370.

It is an arithmetic number, because the mean of its divisors is an integer number (7163970).

Almost surely, 2^55242419 is an apocalyptic number.

55242419 is a deficient number, since it is larger than the sum of its proper divisors (2069341).

55242419 is a wasteful number, since it uses less digits than its factorization.

55242419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5509.

The product of its digits is 14400, while the sum is 32.

The square root of 55242419 is about 7432.5244029199. The cubic root of 55242419 is about 380.8531592681.

The spelling of 55242419 in words is "fifty-five million, two hundred forty-two thousand, four hundred nineteen".