42520554242 has 16 divisors (see below), whose sum is σ = 65855614464. Its totient is φ = 20569044000.

The previous prime is 42520554163. The next prime is 42520554247. The reversal of 42520554242 is 24245502524.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (42520554247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152267 + ... + 328977.

It is an arithmetic number, because the mean of its divisors is an integer number (4115975904).

Almost surely, 2^42520554242 is an apocalyptic number.

42520554242 is a deficient number, since it is larger than the sum of its proper divisors (23335060222).

42520554242 is a wasteful number, since it uses less digits than its factorization.

42520554242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180625.

The product of its (nonzero) digits is 128000, while the sum is 35.

The spelling of 42520554242 in words is "forty-two billion, five hundred twenty million, five hundred fifty-four thousand, two hundred forty-two".