55442416 has 10 divisors (see below), whose sum is σ = 107419712. Its totient is φ = 27721200.

The previous prime is 55442411. The next prime is 55442417. The reversal of 55442416 is 61424455.

It is a happy number.

It is a super-2 number, since 2×55442416² = 6147722983834112, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55442411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1732560 + ... + 1732591.

Almost surely, 2^55442416 is an apocalyptic number.

It is an amenable number.

55442416 is a deficient number, since it is larger than the sum of its proper divisors (51977296).

55442416 is a wasteful number, since it uses less digits than its factorization.

55442416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3465159 (or 3465153 counting only the distinct ones).

The product of its digits is 19200, while the sum is 31.

The square root of 55442416 is about 7445.9664248504. The cubic root of 55442416 is about 381.3122132282.

The spelling of 55442416 in words is "fifty-five million, four hundred forty-two thousand, four hundred sixteen".