655412402 has 4 divisors (see below), whose sum is σ = 983118606. Its totient is φ = 327706200.

The previous prime is 655412341. The next prime is 655412411. The reversal of 655412402 is 204214556.

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., 651729841 + 3682561 = 25529^2 + 1919^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163853099 + ... + 163853102.

Almost surely, 2^655412402 is an apocalyptic number.

655412402 is a deficient number, since it is larger than the sum of its proper divisors (327706204).

655412402 is a wasteful number, since it uses less digits than its factorization.

655412402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327706203.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 655412402 is about 25601.0234561043. The cubic root of 655412402 is about 868.6367878834.

Adding to 655412402 its reverse (204214556), we get a palindrome (859626958).

The spelling of 655412402 in words is "six hundred fifty-five million, four hundred twelve thousand, four hundred two".