42520134254 has 64 divisors (see below), whose sum is σ = 73558679040. Its totient is φ = 18283829760.

The previous prime is 42520134253. The next prime is 42520134263. The reversal of 42520134254 is 45243102524.

It is a self number, because there is not a number n which added to its sum of digits gives 42520134254.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42520134253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8716064 + ... + 8720940.

It is an arithmetic number, because the mean of its divisors is an integer number (1149354360).

Almost surely, 2^42520134254 is an apocalyptic number.

42520134254 is a deficient number, since it is larger than the sum of its proper divisors (31038544786).

42520134254 is a wasteful number, since it uses less digits than its factorization.

42520134254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5325.

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 42520134254 its reverse (45243102524), we get a palindrome (87763236778).

The spelling of 42520134254 in words is "forty-two billion, five hundred twenty million, one hundred thirty-four thousand, two hundred fifty-four".