40353245531523 has 12 divisors (see below), whose sum is σ = 58288423062168. Its totient is φ = 26901978269760.

The previous prime is 40353245531509. The next prime is 40353245531581. The reversal of 40353245531523 is 32513554235304.

40353245531523 is a `hidden beast` number, since 4 + 0 + 3 + 5 + 32 + 45 + 53 + 1 + 523 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-40353245531523 is a prime.

It is a super-3 number, since 3×40353245531523³ (a number of 42 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (40353245531623) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14066613 + ... + 16690598.

It is an arithmetic number, because the mean of its divisors is an integer number (4857368588514).

Almost surely, 2^{40353245531523} is an apocalyptic number.

40353245531523 is a deficient number, since it is larger than the sum of its proper divisors (17935177530645).

40353245531523 is a wasteful number, since it uses less digits than its factorization.

40353245531523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30902994 (or 30902991 counting only the distinct ones).

The product of its (nonzero) digits is 3240000, while the sum is 45.

Adding to 40353245531523 its reverse (32513554235304), we get a palindrome (72866799766827).

The spelling of 40353245531523 in words is "forty trillion, three hundred fifty-three billion, two hundred forty-five million, five hundred thirty-one thousand, five hundred twenty-three".