31576542653 has 2 divisors, whose sum is σ = 31576542654. Its totient is φ = 31576542652.

The previous prime is 31576542649. The next prime is 31576542661. The reversal of 31576542653 is 35624567513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24674754724 + 6901787929 = 157082^2 + 83077^2 .

It is a cyclic number.

It is not a de Polignac number, because 31576542653 - 2² = 31576542649 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31576542598 and 31576542607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31576542853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15788271326 + 15788271327.

It is an arithmetic number, because the mean of its divisors is an integer number (15788271327).

Almost surely, 2^31576542653 is an apocalyptic number.

It is an amenable number.

31576542653 is a deficient number, since it is larger than the sum of its proper divisors (1).

31576542653 is an equidigital number, since it uses as much as digits as its factorization.

31576542653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2268000, while the sum is 47.

The spelling of 31576542653 in words is "thirty-one billion, five hundred seventy-six million, five hundred forty-two thousand, six hundred fifty-three".