5631445120 has 512 divisors, whose sum is σ = 17371791360. Its totient is φ = 1703116800.

The previous prime is 5631445117. The next prime is 5631445121. The reversal of 5631445120 is 215441365.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (5631445121) 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, 130963819 + ... + 130963861.

It is an arithmetic number, because the mean of its divisors is an integer number (33929280).

Almost surely, 2^5631445120 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 5631445120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8685895680).

5631445120 is an abundant number, since it is smaller than the sum of its proper divisors (11740346240).

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

5631445120 is a wasteful number, since it uses less digits than its factorization.

5631445120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164 (or 152 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 5631445120 is about 75042.9551656916. The cubic root of 5631445120 is about 1779.1256405141.

Adding to 5631445120 its reverse (215441365), we get a palindrome (5846886485).

The spelling of 5631445120 in words is "five billion, six hundred thirty-one million, four hundred forty-five thousand, one hundred twenty".