255620402 has 8 divisors (see below), whose sum is σ = 383498496. Its totient is φ = 127787572.

The previous prime is 255620401. The next prime is 255620411. The reversal of 255620402 is 204026552.

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

It is not an unprimeable number, because it can be changed into a prime (255620401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15803 + ... + 27585.

It is an arithmetic number, because the mean of its divisors is an integer number (47937312).

Almost surely, 2^255620402 is an apocalyptic number.

255620402 is a deficient number, since it is larger than the sum of its proper divisors (127878094).

255620402 is a wasteful number, since it uses less digits than its factorization.

255620402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22632.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 255620402 is about 15988.1331618172. The cubic root of 255620402 is about 634.6464247751.

Adding to 255620402 its reverse (204026552), we get a palindrome (459646954).

The spelling of 255620402 in words is "two hundred fifty-five million, six hundred twenty thousand, four hundred two".