42299581725 has 96 divisors (see below), whose sum is σ = 82918006400. Its totient is φ = 21079180800.

The previous prime is 42299581721. The next prime is 42299581739. The reversal of 42299581725 is 52718599224.

It is not a de Polignac number, because 42299581725 - 2² = 42299581721 is a prime.

It is a super-2 number, since 2×42299581725² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42299581721) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 913635 + ... + 958815.

Almost surely, 2^42299581725 is an apocalyptic number.

42299581725 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42299581725 is a deficient number, since it is larger than the sum of its proper divisors (40618424675).

42299581725 is a wasteful number, since it uses less digits than its factorization.

42299581725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45292 (or 45281 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 54.

The spelling of 42299581725 in words is "forty-two billion, two hundred ninety-nine million, five hundred eighty-one thousand, seven hundred twenty-five".