40525523 has 4 divisors (see below), whose sum is σ = 40549488. Its totient is φ = 40501560.

The previous prime is 40525519. The next prime is 40525547. The reversal of 40525523 is 32552504.

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 40525523 - 2² = 40525519 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40525492 and 40525501.

It is not an unprimeable number, because it can be changed into a prime (40527523) 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, 9236 + ... + 12897.

It is an arithmetic number, because the mean of its divisors is an integer number (10137372).

Almost surely, 2^40525523 is an apocalyptic number.

40525523 is a deficient number, since it is larger than the sum of its proper divisors (23965).

40525523 is a wasteful number, since it uses less digits than its factorization.

40525523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23964.

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 40525523 is about 6365.9659911124. The cubic root of 40525523 is about 343.4863972262.

The spelling of 40525523 in words is "forty million, five hundred twenty-five thousand, five hundred twenty-three".