655010400 has 288 divisors, whose sum is σ = 2384097408. Its totient is φ = 154828800.

The previous prime is 655010393. The next prime is 655010413. The reversal of 655010400 is 4010556.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1134912 + ... + 1135488.

It is an arithmetic number, because the mean of its divisors is an integer number (8278116).

Almost surely, 2^655010400 is an apocalyptic number.

655010400 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 655010400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1192048704).

655010400 is an abundant number, since it is smaller than the sum of its proper divisors (1729087008).

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

655010400 is a wasteful number, since it uses less digits than its factorization.

655010400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654 (or 641 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 655010400 is about 25593.1709641459. The cubic root of 655010400 is about 868.4591566481.

Adding to 655010400 its reverse (4010556), we get a palindrome (659020956).

The spelling of 655010400 in words is "six hundred fifty-five million, ten thousand, four hundred".