55788641 has 4 divisors (see below), whose sum is σ = 55806000. Its totient is φ = 55771284.

The previous prime is 55788589. The next prime is 55788653. The reversal of 55788641 is 14688755.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 14688755 = 5 ⋅2937751.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55788641 is a prime.

It is a super-2 number, since 2×55788641² = 6224744929253762, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55788592 and 55788601.

It is not an unprimeable number, because it can be changed into a prime (55788841) 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 3 ways as a sum of consecutive naturals, for example, 2291 + ... + 10808.

It is an arithmetic number, because the mean of its divisors is an integer number (13951500).

Almost surely, 2^55788641 is an apocalyptic number.

It is an amenable number.

55788641 is a deficient number, since it is larger than the sum of its proper divisors (17359).

55788641 is a wasteful number, since it uses less digits than its factorization.

55788641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17358.

The product of its digits is 268800, while the sum is 44.

The square root of 55788641 is about 7469.1794060660. The cubic root of 55788641 is about 382.1043020833.

It can be divided in two parts, 557 and 88641, that added together give a palindrome (89198).

The spelling of 55788641 in words is "fifty-five million, seven hundred eighty-eight thousand, six hundred forty-one".