253555164701 has 2 divisors, whose sum is σ = 253555164702. Its totient is φ = 253555164700.

The previous prime is 253555164697. The next prime is 253555164719. The reversal of 253555164701 is 107461555352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 159180252676 + 94374912025 = 398974^2 + 307205^2 .

It is a cyclic number.

It is not a de Polignac number, because 253555164701 - 2² = 253555164697 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253555164761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126777582350 + 126777582351.

It is an arithmetic number, because the mean of its divisors is an integer number (126777582351).

Almost surely, 2^253555164701 is an apocalyptic number.

It is an amenable number.

253555164701 is a deficient number, since it is larger than the sum of its proper divisors (1).

253555164701 is an equidigital number, since it uses as much as digits as its factorization.

253555164701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 630000, while the sum is 44.

The spelling of 253555164701 in words is "two hundred fifty-three billion, five hundred fifty-five million, one hundred sixty-four thousand, seven hundred one".