55606745 has 16 divisors (see below), whose sum is σ = 72566928. Its totient is φ = 40734720.

The previous prime is 55606721. The next prime is 55606751. The reversal of 55606745 is 54760655.

It can be written as a sum of positive squares in 8 ways, for example, as 1907161 + 53699584 = 1381^2 + 7328^2 .

It is not a de Polignac number, because 55606745 - 2¹⁶ = 55541209 is a prime.

It is a super-2 number, since 2×55606745² = 6184220178990050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 55606699 and 55606708.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5696 + ... + 11985.

It is an arithmetic number, because the mean of its divisors is an integer number (4535433).

Almost surely, 2^55606745 is an apocalyptic number.

It is an amenable number.

55606745 is a deficient number, since it is larger than the sum of its proper divisors (16960183).

55606745 is a wasteful number, since it uses less digits than its factorization.

55606745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17740.

The product of its (nonzero) digits is 126000, while the sum is 38.

The square root of 55606745 is about 7456.9930266831. The cubic root of 55606745 is about 381.6885727804.

The spelling of 55606745 in words is "fifty-five million, six hundred six thousand, seven hundred forty-five".