55040744 has 32 divisors (see below), whose sum is σ = 113097600. Its totient is φ = 24904320.

The previous prime is 55040743. The next prime is 55040767. The reversal of 55040744 is 44704055.

It is not an unprimeable number, because it can be changed into a prime (55040743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19724 + ... + 22340.

It is an arithmetic number, because the mean of its divisors is an integer number (3534300).

Almost surely, 2^55040744 is an apocalyptic number.

It is an amenable number.

55040744 is an abundant number, since it is smaller than the sum of its proper divisors (58056856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55040744 is a wasteful number, since it uses less digits than its factorization.

55040744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2873 (or 2869 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 29.

The square root of 55040744 is about 7418.9449384667. The cubic root of 55040744 is about 380.3891304695.

Adding to 55040744 its reverse (44704055), we get a palindrome (99744799).

The spelling of 55040744 in words is "fifty-five million, forty thousand, seven hundred forty-four".