55544678 has 64 divisors (see below), whose sum is σ = 107412480. Its totient is φ = 20984832.

The previous prime is 55544651. The next prime is 55544683. The reversal of 55544678 is 87644555.

It is a super-2 number, since 2×55544678² = 6170422508247368, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 399533 + ... + 399671.

It is an arithmetic number, because the mean of its divisors is an integer number (1678320).

Almost surely, 2^55544678 is an apocalyptic number.

55544678 is a deficient number, since it is larger than the sum of its proper divisors (51867802).

55544678 is a wasteful number, since it uses less digits than its factorization.

55544678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261.

The product of its digits is 672000, while the sum is 44.

The square root of 55544678 is about 7452.8302006687. The cubic root of 55544678 is about 381.5465091734.

The spelling of 55544678 in words is "fifty-five million, five hundred forty-four thousand, six hundred seventy-eight".