253561733 has 2 divisors, whose sum is σ = 253561734. Its totient is φ = 253561732.

The previous prime is 253561727. The next prime is 253561807. The reversal of 253561733 is 337165352.

It is a happy number.

253561733 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 226863844 + 26697889 = 15062^2 + 5167^2 .

It is a cyclic number.

It is not a de Polignac number, because 253561733 - 2¹⁰ = 253560709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 253561693 and 253561702.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253564733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126780866 + 126780867.

It is an arithmetic number, because the mean of its divisors is an integer number (126780867).

Almost surely, 2^253561733 is an apocalyptic number.

It is an amenable number.

253561733 is a deficient number, since it is larger than the sum of its proper divisors (1).

253561733 is an equidigital number, since it uses as much as digits as its factorization.

253561733 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56700, while the sum is 35.

The square root of 253561733 is about 15923.6218555955. The cubic root of 253561733 is about 632.9380972303.

The spelling of 253561733 in words is "two hundred fifty-three million, five hundred sixty-one thousand, seven hundred thirty-three".