55190743 has 8 divisors (see below), whose sum is σ = 56450880. Its totient is φ = 53944800.

The previous prime is 55190699. The next prime is 55190753. The reversal of 55190743 is 34709155.

55190743 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-55190743 is a prime.

It is a super-2 number, since 2×55190743² = 6092036225784098, 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 = 55190699 and 55190708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55190753) 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 7 ways as a sum of consecutive naturals, for example, 4521 + ... + 11437.

It is an arithmetic number, because the mean of its divisors is an integer number (7056360).

Almost surely, 2^55190743 is an apocalyptic number.

55190743 is a deficient number, since it is larger than the sum of its proper divisors (1260137).

55190743 is a wasteful number, since it uses less digits than its factorization.

55190743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7097.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 55190743 is about 7429.0472471240. The cubic root of 55190743 is about 380.7343670538.

Adding to 55190743 its reverse (34709155), we get a palindrome (89899898).

The spelling of 55190743 in words is "fifty-five million, one hundred ninety thousand, seven hundred forty-three".