42635653625 has 32 divisors (see below), whose sum is σ = 56370981888. Its totient is φ = 32084064000.

The previous prime is 42635653589. The next prime is 42635653639. The reversal of 42635653625 is 52635653624.

It is not a de Polignac number, because 42635653625 - 2¹⁸ = 42635391481 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42635653625.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4685330 + ... + 4694420.

It is an arithmetic number, because the mean of its divisors is an integer number (1761593184).

Almost surely, 2^42635653625 is an apocalyptic number.

It is an amenable number.

42635653625 is a deficient number, since it is larger than the sum of its proper divisors (13735328263).

42635653625 is a wasteful number, since it uses less digits than its factorization.

42635653625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11330 (or 11320 counting only the distinct ones).

The product of its digits is 3888000, while the sum is 47.

Subtracting 42635653625 from its reverse (52635653624), we obtain a palindrome (9999999999).

The spelling of 42635653625 in words is "forty-two billion, six hundred thirty-five million, six hundred fifty-three thousand, six hundred twenty-five".