655195403 has 4 divisors (see below), whose sum is σ = 661206480. Its totient is φ = 649184328.

The previous prime is 655195397. The next prime is 655195417. The reversal of 655195403 is 304591556.

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

It is a cyclic number.

It is not a de Polignac number, because 655195403 - 2¹⁸ = 654933259 is a prime.

It is a super-2 number, since 2×655195403² = 858562032224664818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (655195433) 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, 3005375 + ... + 3005592.

It is an arithmetic number, because the mean of its divisors is an integer number (165301620).

Almost surely, 2^655195403 is an apocalyptic number.

655195403 is a deficient number, since it is larger than the sum of its proper divisors (6011077).

655195403 is a wasteful number, since it uses less digits than its factorization.

655195403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6011076.

The product of its (nonzero) digits is 81000, while the sum is 38.

The square root of 655195403 is about 25596.7850129660. The cubic root of 655195403 is about 868.5409123094.

The spelling of 655195403 in words is "six hundred fifty-five million, one hundred ninety-five thousand, four hundred three".