40041305225 has 12 divisors (see below), whose sum is σ = 50588035596. Its totient is φ = 31428646080.

The previous prime is 40041305219. The next prime is 40041305231. The reversal of 40041305225 is 52250314004.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (40041305219) and next prime (40041305231).

It can be written as a sum of positive squares in 6 ways, for example, as 2924970889 + 37116334336 = 54083^2 + 192656^2 .

It is not a de Polignac number, because 40041305225 - 2¹² = 40041301129 is a prime.

It is a super-2 number, since 2×40041305225² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40041305194 and 40041305203.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15108602 + ... + 15111251.

It is an arithmetic number, because the mean of its divisors is an integer number (4215669633).

Almost surely, 2^40041305225 is an apocalyptic number.

It is an amenable number.

40041305225 is a deficient number, since it is larger than the sum of its proper divisors (10546730371).

40041305225 is a wasteful number, since it uses less digits than its factorization.

40041305225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30219916 (or 30219911 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 40041305225 its reverse (52250314004), we get a palindrome (92291619229).

The spelling of 40041305225 in words is "forty billion, forty-one million, three hundred five thousand, two hundred twenty-five".