42523005125 has 16 divisors (see below), whose sum is σ = 53075563632. Its totient is φ = 34014011200.

The previous prime is 42523005121. The next prime is 42523005127. The reversal of 42523005125 is 52150032524.

It can be written as a sum of positive squares in 8 ways, for example, as 11820255841 + 30702749284 = 108721^2 + 175222^2 .

It is not a de Polignac number, because 42523005125 - 2² = 42523005121 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42523005121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1237679 + ... + 1271571.

It is an arithmetic number, because the mean of its divisors is an integer number (3317222727).

Almost surely, 2^42523005125 is an apocalyptic number.

It is an amenable number.

42523005125 is a deficient number, since it is larger than the sum of its proper divisors (10552558507).

42523005125 is a wasteful number, since it uses less digits than its factorization.

42523005125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43945 (or 43935 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

Adding to 42523005125 its reverse (52150032524), we get a palindrome (94673037649).

The spelling of 42523005125 in words is "forty-two billion, five hundred twenty-three million, five thousand, one hundred twenty-five".