40545525 has 48 divisors (see below), whose sum is σ = 72564800. Its totient is φ = 19906560.

The previous prime is 40545523. The next prime is 40545559. The reversal of 40545525 is 52554504.

It is not a de Polignac number, because 40545525 - 2¹ = 40545523 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40545492 and 40545501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40545521) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 52341 + ... + 53109.

Almost surely, 2^40545525 is an apocalyptic number.

It is an amenable number.

40545525 is a deficient number, since it is larger than the sum of its proper divisors (32019275).

40545525 is a wasteful number, since it uses less digits than its factorization.

40545525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838 (or 833 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 30.

The square root of 40545525 is about 6367.5368079030. The cubic root of 40545525 is about 343.5428989431.

The spelling of 40545525 in words is "forty million, five hundred forty-five thousand, five hundred twenty-five".