655019741 has 4 divisors (see below), whose sum is σ = 693550332. Its totient is φ = 616489152.

The previous prime is 655019663. The next prime is 655019747. The reversal of 655019741 is 147910556.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 318444025 + 336575716 = 17845^2 + 18346^2 .

It is a cyclic number.

It is not a de Polignac number, because 655019741 - 2¹⁰ = 655018717 is a prime.

It is a super-2 number, since 2×655019741² = 858101722199414162, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 655019695 and 655019704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655019747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19265270 + ... + 19265303.

It is an arithmetic number, because the mean of its divisors is an integer number (173387583).

Almost surely, 2^655019741 is an apocalyptic number.

It is an amenable number.

655019741 is a deficient number, since it is larger than the sum of its proper divisors (38530591).

655019741 is a wasteful number, since it uses less digits than its factorization.

655019741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38530590.

The product of its (nonzero) digits is 37800, while the sum is 38.

The square root of 655019741 is about 25593.3534535824. The cubic root of 655019741 is about 868.4632849482.

The spelling of 655019741 in words is "six hundred fifty-five million, nineteen thousand, seven hundred forty-one".