43225512251 has 2 divisors, whose sum is σ = 43225512252. Its totient is φ = 43225512250.

The previous prime is 43225512199. The next prime is 43225512271. The reversal of 43225512251 is 15221552234.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43225512251 is a prime.

It is a super-2 number, since 2×43225512251² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (43225512271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21612756125 + 21612756126.

It is an arithmetic number, because the mean of its divisors is an integer number (21612756126).

Almost surely, 2^43225512251 is an apocalyptic number.

43225512251 is a deficient number, since it is larger than the sum of its proper divisors (1).

43225512251 is an equidigital number, since it uses as much as digits as its factorization.

43225512251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24000, while the sum is 32.

The spelling of 43225512251 in words is "forty-three billion, two hundred twenty-five million, five hundred twelve thousand, two hundred fifty-one".