32125513561 has 2 divisors, whose sum is σ = 32125513562. Its totient is φ = 32125513560.

The previous prime is 32125513549. The next prime is 32125513571. The reversal of 32125513561 is 16531552123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26832078025 + 5293435536 = 163805^2 + 72756^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32125513561 is a prime.

It is not a weakly prime, because it can be changed into another prime (32125513501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16062756780 + 16062756781.

It is an arithmetic number, because the mean of its divisors is an integer number (16062756781).

Almost surely, 2^32125513561 is an apocalyptic number.

It is an amenable number.

32125513561 is a deficient number, since it is larger than the sum of its proper divisors (1).

32125513561 is an equidigital number, since it uses as much as digits as its factorization.

32125513561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27000, while the sum is 34.

The spelling of 32125513561 in words is "thirty-two billion, one hundred twenty-five million, five hundred thirteen thousand, five hundred sixty-one".