255435634 has 4 divisors (see below), whose sum is σ = 383153454. Its totient is φ = 127717816.

The previous prime is 255435623. The next prime is 255435637. The reversal of 255435634 is 436534552.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 224910009 + 30525625 = 14997^2 + 5525^2 .

It is a junction number, because it is equal to n+sod(n) for n = 255435593 and 255435602.

It is not an unprimeable number, because it can be changed into a prime (255435637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63858907 + ... + 63858910.

Almost surely, 2^255435634 is an apocalyptic number.

255435634 is a deficient number, since it is larger than the sum of its proper divisors (127717820).

255435634 is a wasteful number, since it uses less digits than its factorization.

255435634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127717819.

The product of its digits is 216000, while the sum is 37.

The square root of 255435634 is about 15982.3538316482. The cubic root of 255435634 is about 634.4934758264.

The spelling of 255435634 in words is "two hundred fifty-five million, four hundred thirty-five thousand, six hundred thirty-four".