42520015004 has 12 divisors (see below), whose sum is σ = 74423750184. Its totient is φ = 21256086384.

The previous prime is 42520015003. The next prime is 42520015009. The reversal of 42520015004 is 40051002524.

It is a happy number.

It is a super-3 number, since 3×42520015004³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42520015003) 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 3 ways as a sum of consecutive naturals, for example, 955814 + ... + 999309.

It is an arithmetic number, because the mean of its divisors is an integer number (6201979182).

Almost surely, 2^42520015004 is an apocalyptic number.

It is an amenable number.

42520015004 is a deficient number, since it is larger than the sum of its proper divisors (31903735180).

42520015004 is a wasteful number, since it uses less digits than its factorization.

42520015004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1960564 (or 1960562 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

Adding to 42520015004 its reverse (40051002524), we get a palindrome (82571017528).

The spelling of 42520015004 in words is "forty-two billion, five hundred twenty million, fifteen thousand, four".