31564500546001 has 2 divisors, whose sum is σ = 31564500546002. Its totient is φ = 31564500546000.

The previous prime is 31564500545989. The next prime is 31564500546041. The reversal of 31564500546001 is 10064500546513.

It is a happy number.

It is an a-pointer prime, because the next prime (31564500546041) can be obtained adding 31564500546001 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28602986526976 + 2961514019025 = 5348176^2 + 1720905^2 .

It is a cyclic number.

It is not a de Polignac number, because 31564500546001 - 2¹⁷ = 31564500414929 is a prime.

It is not a weakly prime, because it can be changed into another prime (31564500546041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15782250273000 + 15782250273001.

It is an arithmetic number, because the mean of its divisors is an integer number (15782250273001).

Almost surely, 2^{31564500546001} is an apocalyptic number.

It is an amenable number.

31564500546001 is a deficient number, since it is larger than the sum of its proper divisors (1).

31564500546001 is an equidigital number, since it uses as much as digits as its factorization.

31564500546001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216000, while the sum is 40.

The spelling of 31564500546001 in words is "thirty-one trillion, five hundred sixty-four billion, five hundred million, five hundred forty-six thousand, one".