42457152825 has 144 divisors (see below), whose sum is σ = 79856365056. Its totient is φ = 21538483200.

The previous prime is 42457152811. The next prime is 42457152827. The reversal of 42457152825 is 52825175424.

42457152825 is a `hidden beast` number, since 4 + 2 + 4 + 571 + 52 + 8 + 25 = 666.

It is not a de Polignac number, because 42457152825 - 2⁹ = 42457152313 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 (42457152827) 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 143 ways as a sum of consecutive naturals, for example, 150025134 + ... + 150025416.

Almost surely, 2^42457152825 is an apocalyptic number.

42457152825 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42457152825 is a deficient number, since it is larger than the sum of its proper divisors (37399212231).

42457152825 is a wasteful number, since it uses less digits than its factorization.

42457152825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624 (or 616 counting only the distinct ones).

The product of its digits is 896000, while the sum is 45.

The spelling of 42457152825 in words is "forty-two billion, four hundred fifty-seven million, one hundred fifty-two thousand, eight hundred twenty-five".