5651630240 has 96 divisors (see below), whose sum is σ = 13708290960. Its totient is φ = 2200576000.

The previous prime is 5651630239. The next prime is 5651630261. The reversal of 5651630240 is 420361565.

It can be written as a sum of positive squares in 8 ways, for example, as 3849457936 + 1802172304 = 62044^2 + 42452^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 5651630197 and 5651630206.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4597946 + ... + 4599174.

Almost surely, 2^5651630240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5651630240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6854145480).

5651630240 is an abundant number, since it is smaller than the sum of its proper divisors (8056660720).

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

5651630240 is a wasteful number, since it uses less digits than its factorization.

5651630240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1986 (or 1978 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 5651630240 is about 75177.3253049083. The cubic root of 5651630240 is about 1781.2487807276.

The spelling of 5651630240 in words is "five billion, six hundred fifty-one million, six hundred thirty thousand, two hundred forty".