42154351500055 has 4 divisors (see below), whose sum is σ = 50585221800072. Its totient is φ = 33723481200040.

The previous prime is 42154351500007. The next prime is 42154351500077. The reversal of 42154351500055 is 55000515345124.

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

It is not a de Polignac number, because 42154351500055 - 2²⁷ = 42154217282327 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42154351499990 and 42154351500017.

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, 4215435150001 + ... + 4215435150010.

It is an arithmetic number, because the mean of its divisors is an integer number (12646305450018).

Almost surely, 2^{42154351500055} is an apocalyptic number.

42154351500055 is a deficient number, since it is larger than the sum of its proper divisors (8430870300017).

42154351500055 is an equidigital number, since it uses as much as digits as its factorization.

42154351500055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8430870300016.

The product of its (nonzero) digits is 300000, while the sum is 40.

Adding to 42154351500055 its reverse (55000515345124), we get a palindrome (97154866845179).

The spelling of 42154351500055 in words is "forty-two trillion, one hundred fifty-four billion, three hundred fifty-one million, five hundred thousand, fifty-five".