42155124532 has 6 divisors (see below), whose sum is σ = 73771467938. Its totient is φ = 21077562264.

The previous prime is 42155124527. The next prime is 42155124533. The reversal of 42155124532 is 23542155124.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 32275559716 + 9879564816 = 179654^2 + 99396^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42155124533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5269390563 + ... + 5269390570.

Almost surely, 2^42155124532 is an apocalyptic number.

It is an amenable number.

42155124532 is a deficient number, since it is larger than the sum of its proper divisors (31616343406).

42155124532 is a wasteful number, since it uses less digits than its factorization.

42155124532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10538781137 (or 10538781135 counting only the distinct ones).

The product of its digits is 48000, while the sum is 34.

Adding to 42155124532 its reverse (23542155124), we get a palindrome (65697279656).

The spelling of 42155124532 in words is "forty-two billion, one hundred fifty-five million, one hundred twenty-four thousand, five hundred thirty-two".