55511043 has 8 divisors (see below), whose sum is σ = 84588288. Its totient is φ = 31720584.

The previous prime is 55511039. The next prime is 55511047. The reversal of 55511043 is 34011555.

It is an interprime number because it is at equal distance from previous prime (55511039) and next prime (55511047).

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

It is not a de Polignac number, because 55511043 - 2² = 55511039 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55511047) 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, 1321671 + ... + 1321712.

It is an arithmetic number, because the mean of its divisors is an integer number (10573536).

Almost surely, 2^55511043 is an apocalyptic number.

55511043 is a deficient number, since it is larger than the sum of its proper divisors (29077245).

55511043 is a wasteful number, since it uses less digits than its factorization.

55511043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2643393.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 55511043 is about 7450.5733336435. The cubic root of 55511043 is about 381.4694786425.

Adding to 55511043 its reverse (34011555), we get a palindrome (89522598).

The spelling of 55511043 in words is "fifty-five million, five hundred eleven thousand, forty-three".