42261055 has 4 divisors (see below), whose sum is σ = 50713272. Its totient is φ = 33808840.

The previous prime is 42261053. The next prime is 42261061. The reversal of 42261055 is 55016224.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 42261055 - 2¹ = 42261053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42261053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4226101 + ... + 4226110.

It is an arithmetic number, because the mean of its divisors is an integer number (12678318).

Almost surely, 2^42261055 is an apocalyptic number.

42261055 is a deficient number, since it is larger than the sum of its proper divisors (8452217).

42261055 is an equidigital number, since it uses as much as digits as its factorization.

42261055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8452216.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 42261055 is about 6500.8503289954. The cubic root of 42261055 is about 348.3213633141.

Adding to 42261055 its reverse (55016224), we get a palindrome (97277279).

The spelling of 42261055 in words is "forty-two million, two hundred sixty-one thousand, fifty-five".