42154055 has 16 divisors (see below), whose sum is σ = 53581824. Its totient is φ = 31769760.

The previous prime is 42154043. The next prime is 42154087. The reversal of 42154055 is 55045124.

It is not a de Polignac number, because 42154055 - 2¹² = 42149959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4970 + ... + 10440.

It is an arithmetic number, because the mean of its divisors is an integer number (3348864).

Almost surely, 2^42154055 is an apocalyptic number.

42154055 is a deficient number, since it is larger than the sum of its proper divisors (11427769).

42154055 is a wasteful number, since it uses less digits than its factorization.

42154055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5566.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 42154055 is about 6492.6154206144. The cubic root of 42154055 is about 348.0271453480.

Adding to 42154055 its reverse (55045124), we get a palindrome (97199179).

The spelling of 42154055 in words is "forty-two million, one hundred fifty-four thousand, fifty-five".