253612017641 has 2 divisors, whose sum is σ = 253612017642. Its totient is φ = 253612017640.

The previous prime is 253612017601. The next prime is 253612017653. The reversal of 253612017641 is 146710216352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 226618842025 + 26993175616 = 476045^2 + 164296^2 .

It is a cyclic number.

It is not a de Polignac number, because 253612017641 - 2¹⁸ = 253611755497 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 253612017595 and 253612017604.

It is not a weakly prime, because it can be changed into another prime (253612017601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126806008820 + 126806008821.

It is an arithmetic number, because the mean of its divisors is an integer number (126806008821).

Almost surely, 2^253612017641 is an apocalyptic number.

It is an amenable number.

253612017641 is a deficient number, since it is larger than the sum of its proper divisors (1).

253612017641 is an equidigital number, since it uses as much as digits as its factorization.

253612017641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 253612017641 in words is "two hundred fifty-three billion, six hundred twelve million, seventeen thousand, six hundred forty-one".