40525304521 has 8 divisors (see below), whose sum is σ = 43652181440. Its totient is φ = 37399791312.

The previous prime is 40525304483. The next prime is 40525304557. The reversal of 40525304521 is 12540352504.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40525304521 - 2¹¹ = 40525302473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40525304321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278781 + ... + 398458.

It is an arithmetic number, because the mean of its divisors is an integer number (5456522680).

Almost surely, 2^40525304521 is an apocalyptic number.

It is an amenable number.

40525304521 is a deficient number, since it is larger than the sum of its proper divisors (3126876919).

40525304521 is a wasteful number, since it uses less digits than its factorization.

40525304521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681855.

The product of its (nonzero) digits is 24000, while the sum is 31.

The spelling of 40525304521 in words is "forty billion, five hundred twenty-five million, three hundred four thousand, five hundred twenty-one".