55342749 has 16 divisors (see below), whose sum is σ = 91998720. Its totient is φ = 28749360.

The previous prime is 55342747. The next prime is 55342751. The reversal of 55342749 is 94724355.

It is an interprime number because it is at equal distance from previous prime (55342747) and next prime (55342751).

It is not a de Polignac number, because 55342749 - 2¹ = 55342747 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55342747) 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, 119559 + ... + 120020.

It is an arithmetic number, because the mean of its divisors is an integer number (5749920).

Almost surely, 2^55342749 is an apocalyptic number.

It is an amenable number.

55342749 is a deficient number, since it is larger than the sum of its proper divisors (36655971).

55342749 is a wasteful number, since it uses less digits than its factorization.

55342749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239600.

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

The square root of 55342749 is about 7439.2707303875. The cubic root of 55342749 is about 381.0835853841.

The spelling of 55342749 in words is "fifty-five million, three hundred forty-two thousand, seven hundred forty-nine".