655472201 has 4 divisors (see below), whose sum is σ = 656932500. Its totient is φ = 654011904.

The previous prime is 655472173. The next prime is 655472219. The reversal of 655472201 is 102274556.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 302934025 + 352538176 = 17405^2 + 18776^2 .

It is a cyclic number.

It is not a de Polignac number, because 655472201 - 2⁶ = 655472137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (655472291) 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, 729476 + ... + 730373.

It is an arithmetic number, because the mean of its divisors is an integer number (164233125).

Almost surely, 2^655472201 is an apocalyptic number.

It is an amenable number.

655472201 is a deficient number, since it is larger than the sum of its proper divisors (1460299).

655472201 is a wasteful number, since it uses less digits than its factorization.

655472201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1460298.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 655472201 is about 25602.1913319934. The cubic root of 655472201 is about 868.6632048546.

The spelling of 655472201 in words is "six hundred fifty-five million, four hundred seventy-two thousand, two hundred one".