40023125 has 10 divisors (see below), whose sum is σ = 50013678. Its totient is φ = 32018000.

The previous prime is 40023119. The next prime is 40023127. The reversal of 40023125 is 52132004.

It can be written as a sum of positive squares in 5 ways, for example, as 28313041 + 11710084 = 5321^2 + 3422^2 .

It is not a de Polignac number, because 40023125 - 2⁸ = 40022869 is a prime.

It is a super-3 number, since 3×40023125³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40023127) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 31394 + ... + 32643.

Almost surely, 2^40023125 is an apocalyptic number.

It is an amenable number.

40023125 is a deficient number, since it is larger than the sum of its proper divisors (9990553).

40023125 is an frugal number, since it uses more digits than its factorization.

40023125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64057 (or 64042 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 40023125 is about 6326.3832479546. The cubic root of 40023125 is about 342.0610819619.

Adding to 40023125 its reverse (52132004), we get a palindrome (92155129).

The spelling of 40023125 in words is "forty million, twenty-three thousand, one hundred twenty-five".