42510261025 has 12 divisors (see below), whose sum is σ = 53576868604. Its totient is φ = 33450696000.

The previous prime is 42510261023. The next prime is 42510261049. The reversal of 42510261025 is 52016201524.

It can be written as a sum of positive squares in 6 ways, for example, as 7313499361 + 35196761664 = 85519^2 + 187608^2 .

It is not a de Polignac number, because 42510261025 - 2¹ = 42510261023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42510260984 and 42510261002.

It is not an unprimeable number, because it can be changed into a prime (42510261023) 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 11 ways as a sum of consecutive naturals, for example, 13936266 + ... + 13939315.

Almost surely, 2^42510261025 is an apocalyptic number.

It is an amenable number.

42510261025 is a deficient number, since it is larger than the sum of its proper divisors (11066607579).

42510261025 is a wasteful number, since it uses less digits than its factorization.

42510261025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27875652 (or 27875647 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 42510261025 its reverse (52016201524), we get a palindrome (94526462549).

The spelling of 42510261025 in words is "forty-two billion, five hundred ten million, two hundred sixty-one thousand, twenty-five".