1406531052506 has 16 divisors (see below), whose sum is σ = 2215033176384. Its totient is φ = 668561835744.

The previous prime is 1406531052503. The next prime is 1406531052559. The reversal of 1406531052506 is 6052501356041.

It is a super-2 number, since 2×1406531052506² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1406531052506.

It is not an unprimeable number, because it can be changed into a prime (1406531052503) 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 7 ways as a sum of consecutive naturals, for example, 93786251 + ... + 93801246.

It is an arithmetic number, because the mean of its divisors is an integer number (138439573524).

Almost surely, 2^{1406531052506} is an apocalyptic number.

1406531052506 is a deficient number, since it is larger than the sum of its proper divisors (808502123878).

1406531052506 is a wasteful number, since it uses less digits than its factorization.

1406531052506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187587685.

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 1406531052506 in words is "one trillion, four hundred six billion, five hundred thirty-one million, fifty-two thousand, five hundred six".