655771402 has 32 divisors (see below), whose sum is σ = 1168655040. Its totient is φ = 272046720.

The previous prime is 655771399. The next prime is 655771471. The reversal of 655771402 is 204177556.

It is a super-2 number, since 2×655771402² = 860072263362091208, which contains 22 as substring.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 12573 + ... + 38335.

It is an arithmetic number, because the mean of its divisors is an integer number (36520470).

Almost surely, 2^655771402 is an apocalyptic number.

655771402 is a deficient number, since it is larger than the sum of its proper divisors (512883638).

655771402 is a wasteful number, since it uses less digits than its factorization.

655771402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25878.

The product of its (nonzero) digits is 58800, while the sum is 37.

The square root of 655771402 is about 25608.0339346854. The cubic root of 655771402 is about 868.7953565885.

The spelling of 655771402 in words is "six hundred fifty-five million, seven hundred seventy-one thousand, four hundred two".