55749243 has 16 divisors (see below), whose sum is σ = 81273600. Its totient is φ = 33710880.

The previous prime is 55749233. The next prime is 55749251. The reversal of 55749243 is 34294755.

It is not a de Polignac number, because 55749243 - 2²² = 51554939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55749203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15138 + ... + 18456.

It is an arithmetic number, because the mean of its divisors is an integer number (5079600).

Almost surely, 2^55749243 is an apocalyptic number.

55749243 is a deficient number, since it is larger than the sum of its proper divisors (25524357).

55749243 is a wasteful number, since it uses less digits than its factorization.

55749243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3842.

The product of its digits is 151200, while the sum is 39.

The square root of 55749243 is about 7466.5415688925. The cubic root of 55749243 is about 382.0143334077.

The spelling of 55749243 in words is "fifty-five million, seven hundred forty-nine thousand, two hundred forty-three".