245556630 has 128 divisors (see below), whose sum is σ = 739238400. Its totient is φ = 57456000.

The previous prime is 245556613. The next prime is 245556631. The reversal of 245556630 is 36655542.

It is a happy number.

245556630 is a `hidden beast` number, since 2 + 45 + 556 + 63 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245556631) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 84705 + ... + 87555.

It is an arithmetic number, because the mean of its divisors is an integer number (5775300).

Almost surely, 2^245556630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245556630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (369619200).

245556630 is an abundant number, since it is smaller than the sum of its proper divisors (493681770).

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

245556630 is a wasteful number, since it uses less digits than its factorization.

245556630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2907 (or 2901 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The square root of 245556630 is about 15670.2466477079. The cubic root of 245556630 is about 626.2059956889.

The spelling of 245556630 in words is "two hundred forty-five million, five hundred fifty-six thousand, six hundred thirty".