655651063 has 6 divisors (see below), whose sum is σ = 673851696. Its totient is φ = 637929432.

The previous prime is 655651027. The next prime is 655651093. The reversal of 655651063 is 360156556.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-655651063 is a prime.

It is a super-4 number, since 4×655651063⁴ (a number of 36 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655651093) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 238095 + ... + 240832.

It is an arithmetic number, because the mean of its divisors is an integer number (112308616).

Almost surely, 2^655651063 is an apocalyptic number.

655651063 is a deficient number, since it is larger than the sum of its proper divisors (18200633).

655651063 is an equidigital number, since it uses as much as digits as its factorization.

655651063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479001 (or 478964 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 37.

The square root of 655651063 is about 25605.6841931630. The cubic root of 655651063 is about 868.7422098365.

The spelling of 655651063 in words is "six hundred fifty-five million, six hundred fifty-one thousand, sixty-three".