55244737 has 4 divisors (see below), whose sum is σ = 56737876. Its totient is φ = 53751600.

The previous prime is 55244729. The next prime is 55244741. The reversal of 55244737 is 73744255.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 36917776 + 18326961 = 6076^2 + 4281^2 .

It is a cyclic number.

It is not a de Polignac number, because 55244737 - 2³ = 55244729 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 1493101 = 55244737 / (5 + 5 + 2 + 4 + 4 + 7 + 3 + 7).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55244696 and 55244705.

It is not an unprimeable number, because it can be changed into a prime (55244437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 746514 + ... + 746587.

It is an arithmetic number, because the mean of its divisors is an integer number (14184469).

Almost surely, 2^55244737 is an apocalyptic number.

It is an amenable number.

55244737 is a deficient number, since it is larger than the sum of its proper divisors (1493139).

55244737 is a wasteful number, since it uses less digits than its factorization.

55244737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1493138.

The product of its digits is 117600, while the sum is 37.

The square root of 55244737 is about 7432.6803375364. The cubic root of 55244737 is about 380.8584861244.

The spelling of 55244737 in words is "fifty-five million, two hundred forty-four thousand, seven hundred thirty-seven".