261059053 has 2 divisors, whose sum is σ = 261059054. Its totient is φ = 261059052.

The previous prime is 261059047. The next prime is 261059059. The reversal of 261059053 is 350950162.

It is a balanced prime because it is at equal distance from previous prime (261059047) and next prime (261059059).

It can be written as a sum of positive squares in only one way, i.e., 261048649 + 10404 = 16157^2 + 102^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-261059053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (261059059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130529526 + 130529527.

It is an arithmetic number, because the mean of its divisors is an integer number (130529527).

Almost surely, 2^261059053 is an apocalyptic number.

It is an amenable number.

261059053 is a deficient number, since it is larger than the sum of its proper divisors (1).

261059053 is an equidigital number, since it uses as much as digits as its factorization.

261059053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 261059053 is about 16157.3219625036. The cubic root of 261059053 is about 639.1158469858.

The spelling of 261059053 in words is "two hundred sixty-one million, fifty-nine thousand, fifty-three".