650621552 has 160 divisors (see below), whose sum is σ = 1606754304. Its totient is φ = 248832000.

The previous prime is 650621551. The next prime is 650621563. The reversal of 650621552 is 255126056.

650621552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650621551) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4308677 + ... + 4308827.

Almost surely, 2^650621552 is an apocalyptic number.

650621552 is a gapful number since it is divisible by the number (62) 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 650621552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (803377152).

650621552 is an abundant number, since it is smaller than the sum of its proper divisors (956132752).

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

650621552 is a wasteful number, since it uses less digits than its factorization.

650621552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287 (or 281 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 650621552 is about 25507.2842929231. The cubic root of 650621552 is about 866.5151264298.

The spelling of 650621552 in words is "six hundred fifty million, six hundred twenty-one thousand, five hundred fifty-two".