255820426 has 12 divisors (see below), whose sum is σ = 397421622. Its totient is φ = 123498704.

The previous prime is 255820423. The next prime is 255820429. The reversal of 255820426 is 624028552.

It is an interprime number because it is at equal distance from previous prime (255820423) and next prime (255820429).

It can be written as a sum of positive squares in 3 ways, for example, as 207504025 + 48316401 = 14405^2 + 6951^2 .

It is a junction number, because it is equal to n+sod(n) for n = 255820391 and 255820400.

It is not an unprimeable number, because it can be changed into a prime (255820423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 74365 + ... + 77728.

Almost surely, 2^255820426 is an apocalyptic number.

255820426 is a deficient number, since it is larger than the sum of its proper divisors (141601196).

255820426 is a wasteful number, since it uses less digits than its factorization.

255820426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152153 (or 152124 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

The square root of 255820426 is about 15994.3873280598. The cubic root of 255820426 is about 634.8119194152.

Adding to 255820426 its reverse (624028552), we get a palindrome (879848978).

The spelling of 255820426 in words is "two hundred fifty-five million, eight hundred twenty thousand, four hundred twenty-six".