40122252505 has 8 divisors (see below), whose sum is σ = 48227898312. Its totient is φ = 32043671808.

The previous prime is 40122252451. The next prime is 40122252559. The reversal of 40122252505 is 50525222104.

It is an interprime number because it is at equal distance from previous prime (40122252451) and next prime (40122252559).

It can be written as a sum of positive squares in 4 ways, for example, as 428862681 + 39693389824 = 20709^2 + 199232^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40122252505 - 2⁷ = 40122252377 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6763014 + ... + 6768943.

It is an arithmetic number, because the mean of its divisors is an integer number (6028487289).

Almost surely, 2^40122252505 is an apocalyptic number.

It is an amenable number.

40122252505 is a deficient number, since it is larger than the sum of its proper divisors (8105645807).

40122252505 is a wasteful number, since it uses less digits than its factorization.

40122252505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13532555.

The product of its (nonzero) digits is 8000, while the sum is 28.

Adding to 40122252505 its reverse (50525222104), we get a palindrome (90647474609).

The spelling of 40122252505 in words is "forty billion, one hundred twenty-two million, two hundred fifty-two thousand, five hundred five".