653061630 has 96 divisors (see below), whose sum is σ = 1797259104. Its totient is φ = 151277568.

The previous prime is 653061623. The next prime is 653061641. The reversal of 653061630 is 36160356.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon 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, 82402 + ... + 89978.

It is an arithmetic number, because the mean of its divisors is an integer number (18721449).

Almost surely, 2^653061630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 653061630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (898629552).

653061630 is an abundant number, since it is smaller than the sum of its proper divisors (1144197474).

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

653061630 is a wasteful number, since it uses less digits than its factorization.

653061630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7630 (or 7617 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 653061630 is about 25555.0705340447. The cubic root of 653061630 is about 867.5970286818.

The spelling of 653061630 in words is "six hundred fifty-three million, sixty-one thousand, six hundred thirty".