255520753 has 2 divisors, whose sum is σ = 255520754. Its totient is φ = 255520752.

The previous prime is 255520747. The next prime is 255520757. The reversal of 255520753 is 357025552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 208282624 + 47238129 = 14432^2 + 6873^2 .

It is a cyclic number.

It is not a de Polignac number, because 255520753 - 2¹³ = 255512561 is a prime.

It is a super-3 number, since 3×255520753³ (a number of 26 digits) contains 333 as substring.

It is equal to p_13964704 and since 255520753 and 13964704 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (255520757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127760376 + 127760377.

It is an arithmetic number, because the mean of its divisors is an integer number (127760377).

Almost surely, 2^255520753 is an apocalyptic number.

It is an amenable number.

255520753 is a deficient number, since it is larger than the sum of its proper divisors (1).

255520753 is an equidigital number, since it uses as much as digits as its factorization.

255520753 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52500, while the sum is 34.

The square root of 255520753 is about 15985.0165154747. The cubic root of 255520753 is about 634.5639455718.

The spelling of 255520753 in words is "two hundred fifty-five million, five hundred twenty thousand, seven hundred fifty-three".