5621370650 has 72 divisors (see below), whose sum is σ = 12445899840. Its totient is φ = 1882470240.

The previous prime is 5621370619. The next prime is 5621370653. The reversal of 5621370650 is 560731265.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 5621370650.

It is not an unprimeable number, because it can be changed into a prime (5621370653) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 78671 + ... + 132029.

It is an arithmetic number, because the mean of its divisors is an integer number (172859720).

Almost surely, 2^5621370650 is an apocalyptic number.

5621370650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

5621370650 is an abundant number, since it is smaller than the sum of its proper divisors (6824529190).

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

5621370650 is a wasteful number, since it uses less digits than its factorization.

5621370650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53428 (or 53416 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 5621370650 is about 74975.8004292052. The cubic root of 5621370650 is about 1778.0640748190.

The spelling of 5621370650 in words is "five billion, six hundred twenty-one million, three hundred seventy thousand, six hundred fifty".