40254625249 has 2 divisors, whose sum is σ = 40254625250. Its totient is φ = 40254625248.

The previous prime is 40254625219. The next prime is 40254625267. The reversal of 40254625249 is 94252645204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33562240000 + 6692385249 = 183200^2 + 81807^2 .

It is a cyclic number.

It is not a de Polignac number, because 40254625249 - 2¹³ = 40254617057 is a prime.

It is not a weakly prime, because it can be changed into another prime (40254625219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20127312624 + 20127312625.

It is an arithmetic number, because the mean of its divisors is an integer number (20127312625).

Almost surely, 2^40254625249 is an apocalyptic number.

It is an amenable number.

40254625249 is a deficient number, since it is larger than the sum of its proper divisors (1).

40254625249 is an equidigital number, since it uses as much as digits as its factorization.

40254625249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 691200, while the sum is 43.

The spelling of 40254625249 in words is "forty billion, two hundred fifty-four million, six hundred twenty-five thousand, two hundred forty-nine".