5621401605 has 8 divisors (see below), whose sum is σ = 8994242592. Its totient is φ = 2998080848.

The previous prime is 5621401589. The next prime is 5621401607. The reversal of 5621401605 is 5061041265.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5621401605 - 2⁴ = 5621401589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5621401607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187380039 + ... + 187380068.

It is an arithmetic number, because the mean of its divisors is an integer number (1124280324).

Almost surely, 2^5621401605 is an apocalyptic number.

It is an amenable number.

5621401605 is a deficient number, since it is larger than the sum of its proper divisors (3372840987).

5621401605 is a wasteful number, since it uses less digits than its factorization.

5621401605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374760115.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 5621401605 is about 74976.0068621956. The cubic root of 5621401605 is about 1778.0673385469.

The spelling of 5621401605 in words is "five billion, six hundred twenty-one million, four hundred one thousand, six hundred five".