55611845 has 8 divisors (see below), whose sum is σ = 70659864. Its totient is φ = 41872384.

The previous prime is 55611839. The next prime is 55611847. The reversal of 55611845 is 54811655.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 18438436 + 37173409 = 4294^2 + 6097^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55611845 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55611847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 327044 + ... + 327213.

It is an arithmetic number, because the mean of its divisors is an integer number (8832483).

Almost surely, 2^55611845 is an apocalyptic number.

It is an amenable number.

55611845 is a deficient number, since it is larger than the sum of its proper divisors (15048019).

55611845 is a wasteful number, since it uses less digits than its factorization.

55611845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654279.

The product of its digits is 24000, while the sum is 35.

The square root of 55611845 is about 7457.3349797364. The cubic root of 55611845 is about 381.7002413421.

The spelling of 55611845 in words is "fifty-five million, six hundred eleven thousand, eight hundred forty-five".