43542055 has 4 divisors (see below), whose sum is σ = 52250472. Its totient is φ = 34833640.

The previous prime is 43542043. The next prime is 43542089. The reversal of 43542055 is 55024534.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55024534 = 2 ⋅27512267.

It is not a de Polignac number, because 43542055 - 2²¹ = 41444903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4354201 + ... + 4354210.

It is an arithmetic number, because the mean of its divisors is an integer number (13062618).

Almost surely, 2^43542055 is an apocalyptic number.

43542055 is a deficient number, since it is larger than the sum of its proper divisors (8708417).

43542055 is an equidigital number, since it uses as much as digits as its factorization.

43542055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8708416.

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 43542055 is about 6598.6403902622. The cubic root of 43542055 is about 351.8057829037.

Adding to 43542055 its reverse (55024534), we get a palindrome (98566589).

The spelling of 43542055 in words is "forty-three million, five hundred forty-two thousand, fifty-five".