255251145 has 32 divisors (see below), whose sum is σ = 420223104. Its totient is φ = 132249600.

The previous prime is 255251119. The next prime is 255251147. The reversal of 255251145 is 541152552.

It is not a de Polignac number, because 255251145 - 2⁸ = 255250889 is a prime.

It is a super-2 number, since 2×255251145² = 130306294047622050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (255251147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74265 + ... + 77625.

It is an arithmetic number, because the mean of its divisors is an integer number (13131972).

Almost surely, 2^255251145 is an apocalyptic number.

It is an amenable number.

255251145 is a deficient number, since it is larger than the sum of its proper divisors (164971959).

255251145 is a wasteful number, since it uses less digits than its factorization.

255251145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3513.

The product of its digits is 10000, while the sum is 30.

The square root of 255251145 is about 15976.5811424097. The cubic root of 255251145 is about 634.3406842237.

The spelling of 255251145 in words is "two hundred fifty-five million, two hundred fifty-one thousand, one hundred forty-five".