655313771 has 16 divisors (see below), whose sum is σ = 774379200. Its totient is φ = 542816640.

The previous prime is 655313731. The next prime is 655313797. The reversal of 655313771 is 177313556.

It is not a de Polignac number, because 655313771 - 2¹⁸ = 655051627 is a prime.

It is a super-2 number, since 2×655313771² = 858872276924480882, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (655313731) 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 15 ways as a sum of consecutive naturals, for example, 30101 + ... + 47081.

It is an arithmetic number, because the mean of its divisors is an integer number (48398700).

Almost surely, 2^655313771 is an apocalyptic number.

655313771 is a deficient number, since it is larger than the sum of its proper divisors (119065429).

655313771 is a wasteful number, since it uses less digits than its factorization.

655313771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17174.

The product of its digits is 66150, while the sum is 38.

The square root of 655313771 is about 25599.0970739204. The cubic root of 655313771 is about 868.5932128698.

The spelling of 655313771 in words is "six hundred fifty-five million, three hundred thirteen thousand, seven hundred seventy-one".