42542232452 has 24 divisors (see below), whose sum is σ = 75297338424. Its totient is φ = 21029179392.

The previous prime is 42542232413. The next prime is 42542232461. The reversal of 42542232452 is 25423224524.

It can be written as a sum of positive squares in 4 ways, for example, as 343212676 + 42199019776 = 18526^2 + 205424^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 305048 + ... + 422064.

It is an arithmetic number, because the mean of its divisors is an integer number (3137389101).

Almost surely, 2^42542232452 is an apocalyptic number.

It is an amenable number.

42542232452 is a deficient number, since it is larger than the sum of its proper divisors (32755105972).

42542232452 is a wasteful number, since it uses less digits than its factorization.

42542232452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118055 (or 118053 counting only the distinct ones).

The product of its digits is 153600, while the sum is 35.

Adding to 42542232452 its reverse (25423224524), we get a palindrome (67965456976).

The spelling of 42542232452 in words is "forty-two billion, five hundred forty-two million, two hundred thirty-two thousand, four hundred fifty-two".