42510111311225 has 6 divisors (see below), whose sum is σ = 52712538025950. Its totient is φ = 34008089048960.

The previous prime is 42510111311191. The next prime is 42510111311263. The reversal of 42510111311225 is 52211311101524.

It can be written as a sum of positive squares in 3 ways, for example, as 4704595704064 + 37805515607161 = 2169008^2 + 6148619^2 .

It is not a de Polignac number, because 42510111311225 - 2¹² = 42510111307129 is a prime.

It is a super-2 number, since 2×42510111311225² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 850202226200 + ... + 850202226249.

It is an arithmetic number, because the mean of its divisors is an integer number (8785423004325).

Almost surely, 2^{42510111311225} is an apocalyptic number.

It is an amenable number.

42510111311225 is a deficient number, since it is larger than the sum of its proper divisors (10202426714725).

42510111311225 is a wasteful number, since it uses less digits than its factorization.

42510111311225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1700404452459 (or 1700404452454 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 29.

Adding to 42510111311225 its reverse (52211311101524), we get a palindrome (94721422412749).

The spelling of 42510111311225 in words is "forty-two trillion, five hundred ten billion, one hundred eleven million, three hundred eleven thousand, two hundred twenty-five".