40163225 has 6 divisors (see below), whose sum is σ = 49802430. Its totient is φ = 32130560.

The previous prime is 40163191. The next prime is 40163237. The reversal of 40163225 is 52236104.

It can be written as a sum of positive squares in 3 ways, for example, as 1125721 + 39037504 = 1061^2 + 6248^2 .

It is not a de Polignac number, because 40163225 - 2¹⁰ = 40162201 is a prime.

It is a super-2 number, since 2×40163225² = 3226169284801250, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40163225.

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, 803240 + ... + 803289.

It is an arithmetic number, because the mean of its divisors is an integer number (8300405).

Almost surely, 2^40163225 is an apocalyptic number.

It is an amenable number.

40163225 is a deficient number, since it is larger than the sum of its proper divisors (9639205).

40163225 is a wasteful number, since it uses less digits than its factorization.

40163225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1606539 (or 1606534 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 40163225 is about 6337.4462522376. The cubic root of 40163225 is about 342.4597427243.

Adding to 40163225 its reverse (52236104), we get a palindrome (92399329).

The spelling of 40163225 in words is "forty million, one hundred sixty-three thousand, two hundred twenty-five".