40524115221 has 24 divisors (see below), whose sum is σ = 59005552320. Its totient is φ = 26798990400.

The previous prime is 40524115217. The next prime is 40524115223. The reversal of 40524115221 is 12251142504.

It is a happy number.

40524115221 is a `hidden beast` number, since 4 + 0 + 524 + 115 + 2 + 21 = 666.

It is not a de Polignac number, because 40524115221 - 2² = 40524115217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40524115223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3778056 + ... + 3788766.

It is an arithmetic number, because the mean of its divisors is an integer number (2458564680).

Almost surely, 2^40524115221 is an apocalyptic number.

It is an amenable number.

40524115221 is a deficient number, since it is larger than the sum of its proper divisors (18481437099).

40524115221 is a wasteful number, since it uses less digits than its factorization.

40524115221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14057 (or 14054 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

Adding to 40524115221 its reverse (12251142504), we get a palindrome (52775257725).

The spelling of 40524115221 in words is "forty billion, five hundred twenty-four million, one hundred fifteen thousand, two hundred twenty-one".