42144000025 has 12 divisors (see below), whose sum is σ = 55332593532. Its totient is φ = 31731952640.

The previous prime is 42144000023. The next prime is 42144000029. The reversal of 42144000025 is 52000044124.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 736633881 + 41407366144 = 27141^2 + 203488^2 .

It is not a de Polignac number, because 42144000025 - 2¹ = 42144000023 is a prime.

It is a super-2 number, since 2×42144000025² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42144000023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49580752 + ... + 49581601.

It is an arithmetic number, because the mean of its divisors is an integer number (4611049461).

Almost surely, 2^42144000025 is an apocalyptic number.

It is an amenable number.

42144000025 is a deficient number, since it is larger than the sum of its proper divisors (13188593507).

42144000025 is a wasteful number, since it uses less digits than its factorization.

42144000025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99162380 (or 99162375 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

Adding to 42144000025 its reverse (52000044124), we get a palindrome (94144044149).

The spelling of 42144000025 in words is "forty-two billion, one hundred forty-four million, twenty-five", and thus it is an aban number.