655467919 has 4 divisors (see below), whose sum is σ = 655519320. Its totient is φ = 655416520.

The previous prime is 655467893. The next prime is 655467941. The reversal of 655467919 is 919764556.

655467919 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 655467919 - 2²³ = 647079311 is a prime.

It is a super-2 number, since 2×655467919² = 859276385676381122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655467959) 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, 9489 + ... + 37429.

It is an arithmetic number, because the mean of its divisors is an integer number (163879830).

Almost surely, 2^655467919 is an apocalyptic number.

655467919 is a deficient number, since it is larger than the sum of its proper divisors (51401).

655467919 is a wasteful number, since it uses less digits than its factorization.

655467919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51400.

The product of its digits is 2041200, while the sum is 52.

The square root of 655467919 is about 25602.1077062026. The cubic root of 655467919 is about 868.6613132799.

The spelling of 655467919 in words is "six hundred fifty-five million, four hundred sixty-seven thousand, nine hundred nineteen".