655270401 has 8 divisors (see below), whose sum is σ = 874013184. Its totient is φ = 436687280.

The previous prime is 655270387. The next prime is 655270409. The reversal of 655270401 is 104072556.

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

It is a cyclic number.

It is not a de Polignac number, because 655270401 - 2¹⁵ = 655237633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (655270409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29985 + ... + 47006.

It is an arithmetic number, because the mean of its divisors is an integer number (109251648).

Almost surely, 2^655270401 is an apocalyptic number.

It is an amenable number.

655270401 is a deficient number, since it is larger than the sum of its proper divisors (218742783).

655270401 is a wasteful number, since it uses less digits than its factorization.

655270401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79831.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 655270401 is about 25598.2499597140. The cubic root of 655270401 is about 868.5740506911.

The spelling of 655270401 in words is "six hundred fifty-five million, two hundred seventy thousand, four hundred one".