40025255 has 4 divisors (see below), whose sum is σ = 48030312. Its totient is φ = 32020200.

The previous prime is 40025239. The next prime is 40025261. The reversal of 40025255 is 55252004.

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

It is not a de Polignac number, because 40025255 - 2⁴ = 40025239 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40025255.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4002521 + ... + 4002530.

It is an arithmetic number, because the mean of its divisors is an integer number (12007578).

Almost surely, 2^40025255 is an apocalyptic number.

40025255 is a deficient number, since it is larger than the sum of its proper divisors (8005057).

40025255 is an equidigital number, since it uses as much as digits as its factorization.

40025255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8005056.

The product of its (nonzero) digits is 2000, while the sum is 23.

The square root of 40025255 is about 6326.5515883457. The cubic root of 40025255 is about 342.0671499303.

Adding to 40025255 its reverse (55252004), we get a palindrome (95277259).

The spelling of 40025255 in words is "forty million, twenty-five thousand, two hundred fifty-five".