40052313531 has 12 divisors (see below), whose sum is σ = 61256479752. Its totient is φ = 25130863296.

The previous prime is 40052313527. The next prime is 40052313541. The reversal of 40052313531 is 13531325004.

40052313531 is a `hidden beast` number, since 4 + 0 + 0 + 523 + 135 + 3 + 1 = 666.

It is not a de Polignac number, because 40052313531 - 2² = 40052313527 is a prime.

It is a super-2 number, since 2×40052313531² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40052313495 and 40052313504.

It is not an unprimeable number, because it can be changed into a prime (40052313541) 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, 130889761 + ... + 130890066.

It is an arithmetic number, because the mean of its divisors is an integer number (5104706646).

Almost surely, 2^40052313531 is an apocalyptic number.

40052313531 is a deficient number, since it is larger than the sum of its proper divisors (21204166221).

40052313531 is a wasteful number, since it uses less digits than its factorization.

40052313531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261779850 (or 261779847 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

Adding to 40052313531 its reverse (13531325004), we get a palindrome (53583638535).

The spelling of 40052313531 in words is "forty billion, fifty-two million, three hundred thirteen thousand, five hundred thirty-one".