255215553 has 8 divisors (see below), whose sum is σ = 340650528. Its totient is φ = 169962144.

The previous prime is 255215551. The next prime is 255215561. The reversal of 255215553 is 355512552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 255215553 - 2¹ = 255215551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (255215551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42076 + ... + 47757.

It is an arithmetic number, because the mean of its divisors is an integer number (42581316).

Almost surely, 2^255215553 is an apocalyptic number.

It is an amenable number.

255215553 is a deficient number, since it is larger than the sum of its proper divisors (85434975).

255215553 is an equidigital number, since it uses as much as digits as its factorization.

255215553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90783.

The product of its digits is 37500, while the sum is 33.

The square root of 255215553 is about 15975.4672232145. The cubic root of 255215553 is about 634.3111988801.

The spelling of 255215553 in words is "two hundred fifty-five million, two hundred fifteen thousand, five hundred fifty-three".