42530122015 has 32 divisors (see below), whose sum is σ = 53224022016. Its totient is φ = 32598840960.

The previous prime is 42530122007. The next prime is 42530122021. The reversal of 42530122015 is 51022103524.

It is not a de Polignac number, because 42530122015 - 2³ = 42530122007 is a prime.

It is a super-2 number, since 2×42530122015² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5018812 + ... + 5027278.

It is an arithmetic number, because the mean of its divisors is an integer number (1663250688).

Almost surely, 2^42530122015 is an apocalyptic number.

42530122015 is a deficient number, since it is larger than the sum of its proper divisors (10693900001).

42530122015 is a wasteful number, since it uses less digits than its factorization.

42530122015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8959.

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 42530122015 its reverse (51022103524), we get a palindrome (93552225539).

The spelling of 42530122015 in words is "forty-two billion, five hundred thirty million, one hundred twenty-two thousand, fifteen".