40220252425 has 24 divisors (see below), whose sum is σ = 50829782400. Its totient is φ = 31563026880.

The previous prime is 40220252419. The next prime is 40220252431. The reversal of 40220252425 is 52425202204.

It is an interprime number because it is at equal distance from previous prime (40220252419) and next prime (40220252431).

It is not a de Polignac number, because 40220252425 - 2⁷ = 40220252297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40220252393 and 40220252402.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 350091 + ... + 450559.

It is an arithmetic number, because the mean of its divisors is an integer number (2117907600).

Almost surely, 2^40220252425 is an apocalyptic number.

It is an amenable number.

40220252425 is a deficient number, since it is larger than the sum of its proper divisors (10609529975).

40220252425 is a wasteful number, since it uses less digits than its factorization.

40220252425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100785 (or 100780 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 28.

Adding to 40220252425 its reverse (52425202204), we get a palindrome (92645454629).

The spelling of 40220252425 in words is "forty billion, two hundred twenty million, two hundred fifty-two thousand, four hundred twenty-five".