255366642 has 16 divisors (see below), whose sum is σ = 511092000. Its totient is φ = 85062432.

The previous prime is 255366619. The next prime is 255366649. The reversal of 255366642 is 246663552.

It is a self number, because there is not a number n which added to its sum of digits gives 255366642.

It is not an unprimeable number, because it can be changed into a prime (255366649) 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, 5203 + ... + 23190.

It is an arithmetic number, because the mean of its divisors is an integer number (31943250).

Almost surely, 2^255366642 is an apocalyptic number.

255366642 is an abundant number, since it is smaller than the sum of its proper divisors (255725358).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255366642 is a wasteful number, since it uses less digits than its factorization.

255366642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29897.

The product of its digits is 259200, while the sum is 39.

The square root of 255366642 is about 15980.1953054398. The cubic root of 255366642 is about 634.4363460844.

The spelling of 255366642 in words is "two hundred fifty-five million, three hundred sixty-six thousand, six hundred forty-two".