655012242 has 24 divisors (see below), whose sum is σ = 1419721680. Its totient is φ = 218256120.

The previous prime is 655012229. The next prime is 655012271. The reversal of 655012242 is 242210556.

655012242 is a `hidden beast` number, since 655 + 0 + 1 + 2 + 2 + 4 + 2 = 666.

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 in 11 ways as a sum of consecutive naturals, for example, 61509 + ... + 71367.

It is an arithmetic number, because the mean of its divisors is an integer number (59155070).

Almost surely, 2^655012242 is an apocalyptic number.

655012242 is an abundant number, since it is smaller than the sum of its proper divisors (764709438).

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

655012242 is a wasteful number, since it uses less digits than its factorization.

655012242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13558 (or 13555 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 655012242 is about 25593.2069502827. The cubic root of 655012242 is about 868.4599707320.

Adding to 655012242 its reverse (242210556), we get a palindrome (897222798).

The spelling of 655012242 in words is "six hundred fifty-five million, twelve thousand, two hundred forty-two".