40531054531 has 32 divisors (see below), whose sum is σ = 45158033088. Its totient is φ = 36071792640.

The previous prime is 40531054511. The next prime is 40531054547. The reversal of 40531054531 is 13545013504.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40531054531 is a prime.

It is a super-2 number, since 2×40531054531² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40531054493 and 40531054502.

It is not an unprimeable number, because it can be changed into a prime (40531054511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52433061 + ... + 52433833.

It is an arithmetic number, because the mean of its divisors is an integer number (1411188534).

Almost surely, 2^40531054531 is an apocalyptic number.

40531054531 is a deficient number, since it is larger than the sum of its proper divisors (4626978557).

40531054531 is a wasteful number, since it uses less digits than its factorization.

40531054531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1351.

The product of its (nonzero) digits is 18000, while the sum is 31.

The spelling of 40531054531 in words is "forty billion, five hundred thirty-one million, fifty-four thousand, five hundred thirty-one".