255603151 has 4 divisors (see below), whose sum is σ = 255675600. Its totient is φ = 255530704.

The previous prime is 255603119. The next prime is 255603169. The reversal of 255603151 is 151306552.

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

It is a cyclic number.

It is not a de Polignac number, because 255603151 - 2⁵ = 255603119 is a prime.

It is a super-2 number, since 2×255603151² = 130665941602257602, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255603251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30646 + ... + 38083.

It is an arithmetic number, because the mean of its divisors is an integer number (63918900).

Almost surely, 2^255603151 is an apocalyptic number.

255603151 is a deficient number, since it is larger than the sum of its proper divisors (72449).

255603151 is an equidigital number, since it uses as much as digits as its factorization.

255603151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72448.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 255603151 is about 15987.5936588343. The cubic root of 255603151 is about 634.6321477042.

The spelling of 255603151 in words is "two hundred fifty-five million, six hundred three thousand, one hundred fifty-one".