42537073525 has 6 divisors (see below), whose sum is σ = 52745971202. Its totient is φ = 34029658800.

The previous prime is 42537073511. The next prime is 42537073561. The reversal of 42537073525 is 52537073524.

It can be written as a sum of positive squares in 3 ways, for example, as 6367880401 + 36169193124 = 79799^2 + 190182^2 .

It is not a de Polignac number, because 42537073525 - 2⁹ = 42537073013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 850741446 + ... + 850741495.

Almost surely, 2^42537073525 is an apocalyptic number.

It is an amenable number.

42537073525 is a deficient number, since it is larger than the sum of its proper divisors (10208897677).

42537073525 is a wasteful number, since it uses less digits than its factorization.

42537073525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1701482951 (or 1701482946 counting only the distinct ones).

The product of its (nonzero) digits is 882000, while the sum is 43.

Subtracting 42537073525 from its reverse (52537073524), we obtain a palindrome (9999999999).

The spelling of 42537073525 in words is "forty-two billion, five hundred thirty-seven million, seventy-three thousand, five hundred twenty-five".