40425001 has 4 divisors (see below), whose sum is σ = 40720212. Its totient is φ = 40129792.

The previous prime is 40424999. The next prime is 40425013. The reversal of 40425001 is 10052404.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11909401 + 28515600 = 3451^2 + 5340^2 .

It is a cyclic number.

It is not a de Polignac number, because 40425001 - 2¹ = 40424999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40425601) 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, 147400 + ... + 147673.

It is an arithmetic number, because the mean of its divisors is an integer number (10180053).

Almost surely, 2^40425001 is an apocalyptic number.

It is an amenable number.

40425001 is a deficient number, since it is larger than the sum of its proper divisors (295211).

40425001 is a wasteful number, since it uses less digits than its factorization.

40425001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295210.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 40425001 is about 6358.0658222450. The cubic root of 40425001 is about 343.2021604878.

Adding to 40425001 its reverse (10052404), we get a palindrome (50477405).

The spelling of 40425001 in words is "forty million, four hundred twenty-five thousand, one".