55219426 has 4 divisors (see below), whose sum is σ = 82829142. Its totient is φ = 27609712.

The previous prime is 55219403. The next prime is 55219447. The reversal of 55219426 is 62491255.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 33120025 + 22099401 = 5755^2 + 4701^2 .

It is a junction number, because it is equal to n+sod(n) for n = 55219391 and 55219400.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13804855 + ... + 13804858.

Almost surely, 2^55219426 is an apocalyptic number.

55219426 is a deficient number, since it is larger than the sum of its proper divisors (27609716).

55219426 is a wasteful number, since it uses less digits than its factorization.

55219426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27609715.

The product of its digits is 21600, while the sum is 34.

The square root of 55219426 is about 7430.9774592580. The cubic root of 55219426 is about 380.8003123673.

The spelling of 55219426 in words is "fifty-five million, two hundred nineteen thousand, four hundred twenty-six".