255251779 has 2 divisors, whose sum is σ = 255251780. Its totient is φ = 255251778.

The previous prime is 255251767. The next prime is 255251791. The reversal of 255251779 is 977152552.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (255251767) and next prime (255251791).

It is a cyclic number.

It is not a de Polignac number, because 255251779 - 2²⁵ = 221697347 is a prime.

It is not a weakly prime, because it can be changed into another prime (255251729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127625889 + 127625890.

It is an arithmetic number, because the mean of its divisors is an integer number (127625890).

Almost surely, 2^255251779 is an apocalyptic number.

255251779 is a deficient number, since it is larger than the sum of its proper divisors (1).

255251779 is an equidigital number, since it uses as much as digits as its factorization.

255251779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 220500, while the sum is 43.

The square root of 255251779 is about 15976.6009839390. The cubic root of 255251779 is about 634.3412094210.

The spelling of 255251779 in words is "two hundred fifty-five million, two hundred fifty-one thousand, seven hundred seventy-nine".