42520415031 has 24 divisors (see below), whose sum is σ = 64860921216. Its totient is φ = 26787776400.

The previous prime is 42520415027. The next prime is 42520415053. The reversal of 42520415031 is 13051402524.

42520415031 is a `hidden beast` number, since 425 + 204 + 1 + 5 + 0 + 31 = 666.

It is not a de Polignac number, because 42520415031 - 2² = 42520415027 is a prime.

It is a super-2 number, since 2×42520415031² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42520414986 and 42520415004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42520415131) 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 23 ways as a sum of consecutive naturals, for example, 1220245 + ... + 1254606.

It is an arithmetic number, because the mean of its divisors is an integer number (2702538384).

Almost surely, 2^42520415031 is an apocalyptic number.

42520415031 is a deficient number, since it is larger than the sum of its proper divisors (22340506185).

42520415031 is a wasteful number, since it uses less digits than its factorization.

42520415031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2474963 (or 2474960 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 42520415031 its reverse (13051402524), we get a palindrome (55571817555).

The spelling of 42520415031 in words is "forty-two billion, five hundred twenty million, four hundred fifteen thousand, thirty-one".