40125529 has 4 divisors (see below), whose sum is σ = 40141840. Its totient is φ = 40109220.

The previous prime is 40125521. The next prime is 40125539. The reversal of 40125529 is 92552104.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40125529 - 2³ = 40125521 is a prime.

It is a super-2 number, since 2×40125529² = 3220116155059682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40125497 and 40125506.

It is not an unprimeable number, because it can be changed into a prime (40125521) 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, 3627 + ... + 9664.

It is an arithmetic number, because the mean of its divisors is an integer number (10035460).

Almost surely, 2^40125529 is an apocalyptic number.

It is an amenable number.

40125529 is a deficient number, since it is larger than the sum of its proper divisors (16311).

40125529 is a wasteful number, since it uses less digits than its factorization.

40125529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16310.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 40125529 is about 6334.4714854516. The cubic root of 40125529 is about 342.3525683681.

The spelling of 40125529 in words is "forty million, one hundred twenty-five thousand, five hundred twenty-nine".