42598889525 has 12 divisors (see below), whose sum is σ = 54644093700. Its totient is φ = 32903969280.

The previous prime is 42598889521. The next prime is 42598889533. The reversal of 42598889525 is 52598889524.

It can be written as a sum of positive squares in 6 ways, for example, as 153412996 + 42445476529 = 12386^2 + 206023^2 .

It is not a de Polignac number, because 42598889525 - 2² = 42598889521 is a prime.

It is a hoax number, since the sum of its digits (65) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42598889521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29377820 + ... + 29379269.

It is an arithmetic number, because the mean of its divisors is an integer number (4553674475).

Almost surely, 2^42598889525 is an apocalyptic number.

It is an amenable number.

42598889525 is a deficient number, since it is larger than the sum of its proper divisors (12045204175).

42598889525 is a wasteful number, since it uses less digits than its factorization.

42598889525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58757128 (or 58757123 counting only the distinct ones).

The product of its digits is 82944000, while the sum is 65.

Subtracting 42598889525 from its reverse (52598889524), we obtain a palindrome (9999999999).

The spelling of 42598889525 in words is "forty-two billion, five hundred ninety-eight million, eight hundred eighty-nine thousand, five hundred twenty-five".