5101621 has 8 divisors (see below), whose sum is σ = 5940864. Its totient is φ = 4290000.

The previous prime is 5101609. The next prime is 5101627. The reversal of 5101621 is 1261015.

It is a happy number.

5101621 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 5101621 - 2⁷ = 5101493 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5101595 and 5101604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5101627) 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, 6505 + ... + 7246.

It is an arithmetic number, because the mean of its divisors is an integer number (742608).

Almost surely, 2^5101621 is an apocalyptic number.

It is an amenable number.

5101621 is a deficient number, since it is larger than the sum of its proper divisors (839243).

5101621 is a wasteful number, since it uses less digits than its factorization.

5101621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13811.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 5101621 is about 2258.6768250460. The cubic root of 5101621 is about 172.1482969271.

Adding to 5101621 its reverse (1261015), we get a palindrome (6362636).

Subtracting from 5101621 its reverse (1261015), we obtain a triangular number (3840606 = T₂₇₇₁).

The spelling of 5101621 in words is "five million, one hundred one thousand, six hundred twenty-one".