40415223025 has 24 divisors (see below), whose sum is σ = 51753908024. Its totient is φ = 31284403200.

The previous prime is 40415222999. The next prime is 40415223029. The reversal of 40415223025 is 52032251404.

It can be written as a sum of positive squares in 12 ways, for example, as 5305082896 + 35110140129 = 72836^2 + 187377^2 .

It is not a de Polignac number, because 40415223025 - 2⁵ = 40415222993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40415222984 and 40415223002.

It is not an unprimeable number, because it can be changed into a prime (40415223029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46729 + ... + 288121.

Almost surely, 2^40415223025 is an apocalyptic number.

It is an amenable number.

40415223025 is a deficient number, since it is larger than the sum of its proper divisors (11338684999).

40415223025 is a wasteful number, since it uses less digits than its factorization.

40415223025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241621 (or 241616 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 40415223025 its reverse (52032251404), we get a palindrome (92447474429).

The spelling of 40415223025 in words is "forty billion, four hundred fifteen million, two hundred twenty-three thousand, twenty-five".