55745543 has 8 divisors (see below), whose sum is σ = 64294560. Its totient is φ = 47342880.

The previous prime is 55745531. The next prime is 55745551. The reversal of 55745543 is 34554755.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 55745543 - 2⁶ = 55745479 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55745497 and 55745506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55745593) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35768 + ... + 37293.

It is an arithmetic number, because the mean of its divisors is an integer number (8036820).

Almost surely, 2^55745543 is an apocalyptic number.

55745543 is a deficient number, since it is larger than the sum of its proper divisors (8549017).

55745543 is a wasteful number, since it uses less digits than its factorization.

55745543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73177.

The product of its digits is 210000, while the sum is 38.

The square root of 55745543 is about 7466.2937927730. The cubic root of 55745543 is about 382.0058819668.

The spelling of 55745543 in words is "fifty-five million, seven hundred forty-five thousand, five hundred forty-three".