40425751 has 4 divisors (see below), whose sum is σ = 40744192. Its totient is φ = 40107312.

The previous prime is 40425727. The next prime is 40425757. The reversal of 40425751 is 15752404.

40425751 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 40425751 - 2¹¹ = 40423703 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 (40425757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159030 + ... + 159283.

It is an arithmetic number, because the mean of its divisors is an integer number (10186048).

Almost surely, 2^40425751 is an apocalyptic number.

40425751 is a deficient number, since it is larger than the sum of its proper divisors (318441).

40425751 is a wasteful number, since it uses less digits than its factorization.

40425751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318440.

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

The square root of 40425751 is about 6358.1248021724. The cubic root of 40425751 is about 343.2042829369.

The spelling of 40425751 in words is "forty million, four hundred twenty-five thousand, seven hundred fifty-one".