655202641 has 4 divisors (see below), whose sum is σ = 655878384. Its totient is φ = 654526900.

The previous prime is 655202621. The next prime is 655202677. The reversal of 655202641 is 146202556.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 655202641 - 2⁵ = 655202609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (655202621) 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, 336415 + ... + 338356.

It is an arithmetic number, because the mean of its divisors is an integer number (163969596).

Almost surely, 2^655202641 is an apocalyptic number.

It is an amenable number.

655202641 is a deficient number, since it is larger than the sum of its proper divisors (675743).

655202641 is an equidigital number, since it uses as much as digits as its factorization.

655202641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675742.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 655202641 is about 25596.9263975189. The cubic root of 655202641 is about 868.5441105797.

The spelling of 655202641 in words is "six hundred fifty-five million, two hundred two thousand, six hundred forty-one".