255422145 has 32 divisors (see below), whose sum is σ = 452127744. Its totient is φ = 122091200.

The previous prime is 255422129. The next prime is 255422147. The reversal of 255422145 is 541224552.

It is not a de Polignac number, because 255422145 - 2⁴ = 255422129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (255422147) 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, 814 + ... + 22616.

It is an arithmetic number, because the mean of its divisors is an integer number (14128992).

Almost surely, 2^255422145 is an apocalyptic number.

It is an amenable number.

255422145 is a deficient number, since it is larger than the sum of its proper divisors (196705599).

255422145 is a wasteful number, since it uses less digits than its factorization.

255422145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21893.

The product of its digits is 16000, while the sum is 30.

The square root of 255422145 is about 15981.9318294129. The cubic root of 255422145 is about 634.4823068899.

Adding to 255422145 its reverse (541224552), we get a palindrome (796646697).

The spelling of 255422145 in words is "two hundred fifty-five million, four hundred twenty-two thousand, one hundred forty-five".