655703381 has 8 divisors (see below), whose sum is σ = 675602304. Its totient is φ = 635919120.

The previous prime is 655703303. The next prime is 655703393. The reversal of 655703381 is 183307556.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-655703381 is a prime.

It is a super-2 number, since 2×655703381² = 859893847709662322, 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 (655708381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16985 + ... + 39998.

It is an arithmetic number, because the mean of its divisors is an integer number (84450288).

Almost surely, 2^655703381 is an apocalyptic number.

It is an amenable number.

655703381 is a deficient number, since it is larger than the sum of its proper divisors (19898923).

655703381 is a wasteful number, since it uses less digits than its factorization.

655703381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57331.

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 655703381 is about 25606.7057818846. The cubic root of 655703381 is about 868.7653164596.

The spelling of 655703381 in words is "six hundred fifty-five million, seven hundred three thousand, three hundred eighty-one".