42635453625 has 160 divisors (see below), whose sum is σ = 83414403072. Its totient is φ = 21626352000.

The previous prime is 42635453621. The next prime is 42635453639. The reversal of 42635453625 is 52635453624.

42635453625 is a `hidden beast` number, since 4 + 2 + 63 + 54 + 536 + 2 + 5 = 666.

It is not a de Polignac number, because 42635453625 - 2² = 42635453621 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (42635453621) by changing a digit.

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 159 ways as a sum of consecutive naturals, for example, 51930715 + ... + 51931535.

Almost surely, 2^42635453625 is an apocalyptic number.

42635453625 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42635453625 is a deficient number, since it is larger than the sum of its proper divisors (40778949447).

42635453625 is a wasteful number, since it uses less digits than its factorization.

42635453625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094 (or 1075 counting only the distinct ones).

The product of its digits is 2592000, while the sum is 45.

Subtracting 42635453625 from its reverse (52635453624), we obtain a palindrome (9999999999).

The spelling of 42635453625 in words is "forty-two billion, six hundred thirty-five million, four hundred fifty-three thousand, six hundred twenty-five".