42520250525 has 24 divisors (see below), whose sum is σ = 53613797664. Its totient is φ = 33446750400.

The previous prime is 42520250477. The next prime is 42520250543. The reversal of 42520250525 is 52505202524.

It is not a de Polignac number, because 42520250525 - 2¹⁰ = 42520249501 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42520250491 and 42520250500.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 389267 + ... + 486383.

It is an arithmetic number, because the mean of its divisors is an integer number (2233908236).

Almost surely, 2^42520250525 is an apocalyptic number.

It is an amenable number.

42520250525 is a deficient number, since it is larger than the sum of its proper divisors (11093547139).

42520250525 is a wasteful number, since it uses less digits than its factorization.

42520250525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97421 (or 97416 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 32.

The spelling of 42520250525 in words is "forty-two billion, five hundred twenty million, two hundred fifty thousand, five hundred twenty-five".