55331426 has 4 divisors (see below), whose sum is σ = 82997142. Its totient is φ = 27665712.

The previous prime is 55331377. The next prime is 55331443. The reversal of 55331426 is 62413355.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62413355 = 5 ⋅12482671.

It can be written as a sum of positive squares in only one way, i.e., 44209201 + 11122225 = 6649^2 + 3335^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13832855 + ... + 13832858.

Almost surely, 2^55331426 is an apocalyptic number.

55331426 is a deficient number, since it is larger than the sum of its proper divisors (27665716).

55331426 is a wasteful number, since it uses less digits than its factorization.

55331426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27665715.

The product of its digits is 10800, while the sum is 29.

The square root of 55331426 is about 7438.5096625601. The cubic root of 55331426 is about 381.0575940011.

The spelling of 55331426 in words is "fifty-five million, three hundred thirty-one thousand, four hundred twenty-six".