42422405531 has 32 divisors (see below), whose sum is σ = 48212914176. Its totient is φ = 36991728000.

The previous prime is 42422405521. The next prime is 42422405551. The reversal of 42422405531 is 13550422424.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42422405531 is a prime.

It is a super-2 number, since 2×42422405531² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42422405521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9238046 + ... + 9242636.

It is an arithmetic number, because the mean of its divisors is an integer number (1506653568).

Almost surely, 2^42422405531 is an apocalyptic number.

42422405531 is a deficient number, since it is larger than the sum of its proper divisors (5790508645).

42422405531 is a wasteful number, since it uses less digits than its factorization.

42422405531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5003.

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

Adding to 42422405531 its reverse (13550422424), we get a palindrome (55972827955).

The spelling of 42422405531 in words is "forty-two billion, four hundred twenty-two million, four hundred five thousand, five hundred thirty-one".