255142402 has 4 divisors (see below), whose sum is σ = 382713606. Its totient is φ = 127571200.

The previous prime is 255142379. The next prime is 255142403. The reversal of 255142402 is 204241552.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 203604361 + 51538041 = 14269^2 + 7179^2 .

It is not an unprimeable number, because it can be changed into a prime (255142403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63785599 + ... + 63785602.

Almost surely, 2^255142402 is an apocalyptic number.

255142402 is a deficient number, since it is larger than the sum of its proper divisors (127571204).

255142402 is a wasteful number, since it uses less digits than its factorization.

255142402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127571203.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 255142402 is about 15973.1775799307. The cubic root of 255142402 is about 634.2505900708.

Adding to 255142402 its reverse (204241552), we get a palindrome (459383954).

The spelling of 255142402 in words is "two hundred fifty-five million, one hundred forty-two thousand, four hundred two".