655551746 has 4 divisors (see below), whose sum is σ = 983327622. Its totient is φ = 327775872.

The previous prime is 655551731. The next prime is 655551749. The reversal of 655551746 is 647155556.

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., 596092225 + 59459521 = 24415^2 + 7711^2 .

It is a junction number, because it is equal to n+sod(n) for n = 655551697 and 655551706.

It is not an unprimeable number, because it can be changed into a prime (655551749) by changing a digit.

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, 163887935 + ... + 163887938.

Almost surely, 2^655551746 is an apocalyptic number.

655551746 is a deficient number, since it is larger than the sum of its proper divisors (327775876).

655551746 is a wasteful number, since it uses less digits than its factorization.

655551746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327775875.

The product of its digits is 630000, while the sum is 44.

The square root of 655551746 is about 25603.7447651706. The cubic root of 655551746 is about 868.6983423833.

The spelling of 655551746 in words is "six hundred fifty-five million, five hundred fifty-one thousand, seven hundred forty-six".