55844555 has 16 divisors (see below), whose sum is σ = 72395904. Its totient is φ = 41109120.

The previous prime is 55844543. The next prime is 55844603. The reversal of 55844555 is 55544855.

It is not a de Polignac number, because 55844555 - 2⁴ = 55844539 is a prime.

It is a super-2 number, since 2×55844555² = 6237228646296050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22685 + ... + 25025.

It is an arithmetic number, because the mean of its divisors is an integer number (4524744).

Almost surely, 2^55844555 is an apocalyptic number.

55844555 is a deficient number, since it is larger than the sum of its proper divisors (16551349).

55844555 is a wasteful number, since it uses less digits than its factorization.

55844555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2726.

The product of its digits is 400000, while the sum is 41.

The square root of 55844555 is about 7472.9214501425. The cubic root of 55844555 is about 382.2319137612.

The spelling of 55844555 in words is "fifty-five million, eight hundred forty-four thousand, five hundred fifty-five".