55641849 has 4 divisors (see below), whose sum is σ = 74189136. Its totient is φ = 37094564.

The previous prime is 55641847. The next prime is 55641851. The reversal of 55641849 is 94814655.

55641849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (55641847) and next prime (55641851).

It is a cyclic number.

It is not a de Polignac number, because 55641849 - 2¹ = 55641847 is a prime.

It is a super-4 number, since 4×55641849⁴ (a number of 32 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55641849.

It is not an unprimeable number, because it can be changed into a prime (55641847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9273639 + ... + 9273644.

It is an arithmetic number, because the mean of its divisors is an integer number (18547284).

Almost surely, 2^55641849 is an apocalyptic number.

It is an amenable number.

55641849 is a deficient number, since it is larger than the sum of its proper divisors (18547287).

55641849 is a wasteful number, since it uses less digits than its factorization.

55641849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18547286.

The product of its digits is 172800, while the sum is 42.

The square root of 55641849 is about 7459.3464190906. The cubic root of 55641849 is about 381.7688746522.

The spelling of 55641849 in words is "fifty-five million, six hundred forty-one thousand, eight hundred forty-nine".