42102412425 has 36 divisors (see below), whose sum is σ = 78010459020. Its totient is φ = 21680319360.

The previous prime is 42102412421. The next prime is 42102412427. The reversal of 42102412425 is 52421420124.

It is a happy number.

42102412425 is a `hidden beast` number, since 4 + 210 + 24 + 1 + 2 + 425 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 769896009 + 41332516416 = 27747^2 + 203304^2 .

It is not a de Polignac number, because 42102412425 - 2² = 42102412421 is a prime.

It is a super-2 number, since 2×42102412425² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42102412421) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3219714 + ... + 3232763.

It is an arithmetic number, because the mean of its divisors is an integer number (2166957195).

Almost surely, 2^42102412425 is an apocalyptic number.

42102412425 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42102412425 is a deficient number, since it is larger than the sum of its proper divisors (35908046595).

42102412425 is a wasteful number, since it uses less digits than its factorization.

42102412425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6452522 (or 6452514 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

Adding to 42102412425 its reverse (52421420124), we get a palindrome (94523832549).

The spelling of 42102412425 in words is "forty-two billion, one hundred two million, four hundred twelve thousand, four hundred twenty-five".