255251603 has 8 divisors (see below), whose sum is σ = 261273600. Its totient is φ = 249297160.

The previous prime is 255251599. The next prime is 255251621. The reversal of 255251603 is 306152552.

It is a happy number.

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

It is not a de Polignac number, because 255251603 - 2² = 255251599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255251653) 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, 9203 + ... + 24396.

It is an arithmetic number, because the mean of its divisors is an integer number (32659200).

Almost surely, 2^255251603 is an apocalyptic number.

255251603 is a deficient number, since it is larger than the sum of its proper divisors (6021997).

255251603 is a wasteful number, since it uses less digits than its factorization.

255251603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33777.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 255251603 is about 15976.5954758828. The cubic root of 255251603 is about 634.3410636250.

The spelling of 255251603 in words is "two hundred fifty-five million, two hundred fifty-one thousand, six hundred three".