40025311 has 2 divisors, whose sum is σ = 40025312. Its totient is φ = 40025310.

The previous prime is 40025299. The next prime is 40025351. The reversal of 40025311 is 11352004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40025311 - 2¹³ = 40017119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40025351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20012655 + 20012656.

It is an arithmetic number, because the mean of its divisors is an integer number (20012656).

Almost surely, 2^40025311 is an apocalyptic number.

40025311 is a deficient number, since it is larger than the sum of its proper divisors (1).

40025311 is an equidigital number, since it uses as much as digits as its factorization.

40025311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 40025311 is about 6326.5560141360. The cubic root of 40025311 is about 342.0673094609.

Adding to 40025311 its reverse (11352004), we get a palindrome (51377315).

The spelling of 40025311 in words is "forty million, twenty-five thousand, three hundred eleven".