40243025532251 has 2 divisors, whose sum is σ = 40243025532252. Its totient is φ = 40243025532250.

The previous prime is 40243025532247. The next prime is 40243025532287. The reversal of 40243025532251 is 15223552034204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40243025532251 - 2² = 40243025532247 is a prime.

It is a super-2 number, since 2×40243025532251² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40243025532851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20121512766125 + 20121512766126.

It is an arithmetic number, because the mean of its divisors is an integer number (20121512766126).

Almost surely, 2^{40243025532251} is an apocalyptic number.

40243025532251 is a deficient number, since it is larger than the sum of its proper divisors (1).

40243025532251 is an equidigital number, since it uses as much as digits as its factorization.

40243025532251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288000, while the sum is 38.

Adding to 40243025532251 its reverse (15223552034204), we get a palindrome (55466577566455).

The spelling of 40243025532251 in words is "forty trillion, two hundred forty-three billion, twenty-five million, five hundred thirty-two thousand, two hundred fifty-one".