40255279 has 4 divisors (see below), whose sum is σ = 40363576. Its totient is φ = 40146984.

The previous prime is 40255273. The next prime is 40255289. The reversal of 40255279 is 97255204.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40255279 - 2⁷ = 40255151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40255273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53589 + ... + 54334.

It is an arithmetic number, because the mean of its divisors is an integer number (10090894).

Almost surely, 2^40255279 is an apocalyptic number.

40255279 is a deficient number, since it is larger than the sum of its proper divisors (108297).

40255279 is a wasteful number, since it uses less digits than its factorization.

40255279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108296.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 40255279 is about 6344.7048000675. The cubic root of 40255279 is about 342.7211820125.

The spelling of 40255279 in words is "forty million, two hundred fifty-five thousand, two hundred seventy-nine".