5101605421 has 8 divisors (see below), whose sum is σ = 5569251264. Its totient is φ = 4634603520.

The previous prime is 5101605419. The next prime is 5101605433. The reversal of 5101605421 is 1245061015.

It is a happy number.

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 5101605421 - 2¹ = 5101605419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5101605461) 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, 144340 + ... + 176173.

It is an arithmetic number, because the mean of its divisors is an integer number (696156408).

Almost surely, 2^5101605421 is an apocalyptic number.

It is an amenable number.

5101605421 is a deficient number, since it is larger than the sum of its proper divisors (467645843).

5101605421 is a wasteful number, since it uses less digits than its factorization.

5101605421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321971.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 5101605421 is about 71425.5235962607. The cubic root of 5101605421 is about 1721.4812169519.

Adding to 5101605421 its reverse (1245061015), we get a palindrome (6346666436).

The spelling of 5101605421 in words is "five billion, one hundred one million, six hundred five thousand, four hundred twenty-one".