255550250369 has 2 divisors, whose sum is σ = 255550250370. Its totient is φ = 255550250368.

The previous prime is 255550250269. The next prime is 255550250411. The reversal of 255550250369 is 963052055552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 193237609744 + 62312640625 = 439588^2 + 249625^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255550250369 is a prime.

It is a super-2 number, since 2×255550250369² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (255550250269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127775125184 + 127775125185.

It is an arithmetic number, because the mean of its divisors is an integer number (127775125185).

Almost surely, 2^255550250369 is an apocalyptic number.

It is an amenable number.

255550250369 is a deficient number, since it is larger than the sum of its proper divisors (1).

255550250369 is an equidigital number, since it uses as much as digits as its factorization.

255550250369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2025000, while the sum is 47.

The spelling of 255550250369 in words is "two hundred fifty-five billion, five hundred fifty million, two hundred fifty thousand, three hundred sixty-nine".