40425571 has 4 divisors (see below), whose sum is σ = 41518192. Its totient is φ = 39332952.

The previous prime is 40425557. The next prime is 40425577. The reversal of 40425571 is 17552404.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40425571 is a prime.

It is a super-3 number, since 3×40425571³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40425577) 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, 546255 + ... + 546328.

It is an arithmetic number, because the mean of its divisors is an integer number (10379548).

Almost surely, 2^40425571 is an apocalyptic number.

40425571 is a deficient number, since it is larger than the sum of its proper divisors (1092621).

40425571 is a wasteful number, since it uses less digits than its factorization.

40425571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092620.

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 40425571 is about 6358.1106470397. The cubic root of 40425571 is about 343.2037735515.

Adding to 40425571 its reverse (17552404), we get a palindrome (57977975).

The spelling of 40425571 in words is "forty million, four hundred twenty-five thousand, five hundred seventy-one".