255634429 has 2 divisors, whose sum is σ = 255634430. Its totient is φ = 255634428.

The previous prime is 255634409. The next prime is 255634447. The reversal of 255634429 is 924436552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 234151204 + 21483225 = 15302^2 + 4635^2 .

It is a cyclic number.

It is not a de Polignac number, because 255634429 - 2¹⁷ = 255503357 is a prime.

It is a super-3 number, since 3×255634429³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 255634391 and 255634400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255634409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127817214 + 127817215.

It is an arithmetic number, because the mean of its divisors is an integer number (127817215).

Almost surely, 2^255634429 is an apocalyptic number.

It is an amenable number.

255634429 is a deficient number, since it is larger than the sum of its proper divisors (1).

255634429 is an equidigital number, since it uses as much as digits as its factorization.

255634429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 259200, while the sum is 40.

The square root of 255634429 is about 15988.5718249004. The cubic root of 255634429 is about 634.6580331633.

It can be divided in two parts, 25563 and 4429, that added together give a palindrome (29992).

The spelling of 255634429 in words is "two hundred fifty-five million, six hundred thirty-four thousand, four hundred twenty-nine".