40025299 has 2 divisors, whose sum is σ = 40025300. Its totient is φ = 40025298.

The previous prime is 40025281. The next prime is 40025311. The reversal of 40025299 is 99252004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40025299 - 2⁷ = 40025171 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40025299.

It is not a weakly prime, because it can be changed into another prime (40025239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20012649 + 20012650.

It is an arithmetic number, because the mean of its divisors is an integer number (20012650).

Almost surely, 2^40025299 is an apocalyptic number.

40025299 is a deficient number, since it is larger than the sum of its proper divisors (1).

40025299 is an equidigital number, since it uses as much as digits as its factorization.

40025299 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 40025299 is about 6326.5550657526. Note that the first 3 decimals coincide. The cubic root of 40025299 is about 342.0672752757.

The spelling of 40025299 in words is "forty million, twenty-five thousand, two hundred ninety-nine".