655985050 has 36 divisors (see below), whose sum is σ = 1419342750. Its totient is φ = 224908320.

The previous prime is 655985023. The next prime is 655985053. The reversal of 655985050 is 50589556.

It can be written as a sum of positive squares in 3 ways, for example, as 336612409 + 319372641 = 18347^2 + 17871^2 .

It is a junction number, because it is equal to n+sod(n) for n = 655984988 and 655985006.

It is not an unprimeable number, because it can be changed into a prime (655985053) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 131425 + ... + 136324.

Almost surely, 2^655985050 is an apocalyptic number.

655985050 is an abundant number, since it is smaller than the sum of its proper divisors (763357700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

655985050 is a wasteful number, since it uses less digits than its factorization.

655985050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267775 (or 267763 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 43.

The square root of 655985050 is about 25612.2050983511. The cubic root of 655985050 is about 868.8896964940.

The spelling of 655985050 in words is "six hundred fifty-five million, nine hundred eighty-five thousand, fifty".