5601621312 has 224 divisors, whose sum is σ = 19928067840. Its totient is φ = 1506263040.

The previous prime is 5601621301. The next prime is 5601621313. The reversal of 5601621312 is 2131261065.

5601621312 is a `hidden beast` number, since 5 + 6 + 0 + 1 + 621 + 31 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (224).

It is a super-2 number, since 2×5601621312² = 62756322646105202688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5601621313) 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, 192012 + ... + 219252.

Almost surely, 2^5601621312 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 5601621312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9964033920).

5601621312 is an abundant number, since it is smaller than the sum of its proper divisors (14326446528).

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

5601621312 is a wasteful number, since it uses less digits than its factorization.

5601621312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27286 (or 27270 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 5601621312 is about 74843.9797979771. The cubic root of 5601621312 is about 1775.9793642599.

Adding to 5601621312 its reverse (2131261065), we get a palindrome (7732882377).

The spelling of 5601621312 in words is "five billion, six hundred one million, six hundred twenty-one thousand, three hundred twelve".