655225043 has 12 divisors (see below), whose sum is σ = 745044720. Its totient is φ = 575116080.

The previous prime is 655225027. The next prime is 655225049. The reversal of 655225043 is 340522556.

It is not a de Polignac number, because 655225043 - 2⁴ = 655225027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (655225049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89855 + ... + 96872.

It is an arithmetic number, because the mean of its divisors is an integer number (62087060).

Almost surely, 2^655225043 is an apocalyptic number.

655225043 is a deficient number, since it is larger than the sum of its proper divisors (89819677).

655225043 is a wasteful number, since it uses less digits than its factorization.

655225043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186778 (or 186767 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 32.

The square root of 655225043 is about 25597.3639853794. The cubic root of 655225043 is about 868.5540092493.

Adding to 655225043 its reverse (340522556), we get a palindrome (995747599).

The spelling of 655225043 in words is "six hundred fifty-five million, two hundred twenty-five thousand, forty-three".