255213047 has 2 divisors, whose sum is σ = 255213048. Its totient is φ = 255213046.

The previous prime is 255213031. The next prime is 255213059. The reversal of 255213047 is 740312552.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 255213047 - 2⁴ = 255213031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255213067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127606523 + 127606524.

It is an arithmetic number, because the mean of its divisors is an integer number (127606524).

Almost surely, 2^255213047 is an apocalyptic number.

255213047 is a deficient number, since it is larger than the sum of its proper divisors (1).

255213047 is an equidigital number, since it uses as much as digits as its factorization.

255213047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 255213047 is about 15975.3887902611. The cubic root of 255213047 is about 634.3091227409.

Adding to 255213047 its reverse (740312552), we get a palindrome (995525599).

The spelling of 255213047 in words is "two hundred fifty-five million, two hundred thirteen thousand, forty-seven".