575261 has 2 divisors, whose sum is σ = 575262. Its totient is φ = 575260.

The previous prime is 575257. The next prime is 575303. The reversal of 575261 is 162575.

575261 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., 319225 + 256036 = 565^2 + 506^2 .

It is a cyclic number.

It is not a de Polignac number, because 575261 - 2² = 575257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 575261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (575231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 287630 + 287631.

It is an arithmetic number, because the mean of its divisors is an integer number (287631).

2⁵⁷⁵²⁶¹ is an apocalyptic number.

It is an amenable number.

575261 is a deficient number, since it is larger than the sum of its proper divisors (1).

575261 is an equidigital number, since it uses as much as digits as its factorization.

575261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2100, while the sum is 26.

The square root of 575261 is about 758.4596231837. The cubic root of 575261 is about 83.1677547784.

Subtracting from 575261 its reverse (162575), we obtain a triangular number (412686 = T₉₀₈).

The spelling of 575261 in words is "five hundred seventy-five thousand, two hundred sixty-one".