255552553 has 8 divisors (see below), whose sum is σ = 267337800. Its totient is φ = 243965568.

The previous prime is 255552547. The next prime is 255552581. The reversal of 255552553 is 355255552.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5817744 + 249734809 = 2412^2 + 15803^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 255552553 - 2²¹ = 253455401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255552503) 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, 46926 + ... + 52087.

It is an arithmetic number, because the mean of its divisors is an integer number (33417225).

Almost surely, 2^255552553 is an apocalyptic number.

It is an amenable number.

255552553 is a deficient number, since it is larger than the sum of its proper divisors (11785247).

255552553 is an equidigital number, since it uses as much as digits as its factorization.

255552553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99131.

The product of its digits is 187500, while the sum is 37.

The square root of 255552553 is about 15986.0111660164. The cubic root of 255552553 is about 634.5902686737.

The spelling of 255552553 in words is "two hundred fifty-five million, five hundred fifty-two thousand, five hundred fifty-three".