253261360061 has 2 divisors, whose sum is σ = 253261360062. Its totient is φ = 253261360060.

The previous prime is 253261360057. The next prime is 253261360127. The reversal of 253261360061 is 160063162352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 240462736900 + 12798623161 = 490370^2 + 113131^2 .

It is a cyclic number.

It is not a de Polignac number, because 253261360061 - 2² = 253261360057 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253261360361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126630680030 + 126630680031.

It is an arithmetic number, because the mean of its divisors is an integer number (126630680031).

Almost surely, 2^253261360061 is an apocalyptic number.

It is an amenable number.

253261360061 is a deficient number, since it is larger than the sum of its proper divisors (1).

253261360061 is an equidigital number, since it uses as much as digits as its factorization.

253261360061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 35.

The spelling of 253261360061 in words is "two hundred fifty-three billion, two hundred sixty-one million, three hundred sixty thousand, sixty-one".