655050240 has 400 divisors, whose sum is σ = 2537056368. Its totient is φ = 161243136.

The previous prime is 655050229. The next prime is 655050241. The reversal of 655050240 is 42050556.

655050240 is a `hidden beast` number, since 655 + 0 + 5 + 0 + 2 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655050241) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 50388474 + ... + 50388486.

Almost surely, 2^655050240 is an apocalyptic number.

655050240 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 655050240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1268528184).

655050240 is an abundant number, since it is smaller than the sum of its proper divisors (1882006128).

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

655050240 is an frugal number, since it uses more digits than its factorization.

655050240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63 (or 23 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 655050240 is about 25593.9492849384. The cubic root of 655050240 is about 868.4767638552.

The spelling of 655050240 in words is "six hundred fifty-five million, fifty thousand, two hundred forty".