5107521 has 4 divisors (see below), whose sum is σ = 6810032. Its totient is φ = 3405012.

The previous prime is 5107511. The next prime is 5107549. The reversal of 5107521 is 1257015.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 5107521 - 2⁶ = 5107457 is a prime.

It is a D-number.

It is a Duffinian number.

5107521 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5107511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 851251 + ... + 851256.

It is an arithmetic number, because the mean of its divisors is an integer number (1702508).

Almost surely, 2^5107521 is an apocalyptic number.

It is an amenable number.

5107521 is a deficient number, since it is larger than the sum of its proper divisors (1702511).

5107521 is a wasteful number, since it uses less digits than its factorization.

5107521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1702510.

The product of its (nonzero) digits is 350, while the sum is 21.

The square root of 5107521 is about 2259.9825220563. The cubic root of 5107521 is about 172.2146342516.

The spelling of 5107521 in words is "five million, one hundred seven thousand, five hundred twenty-one".