5042521 has 8 divisors (see below), whose sum is σ = 5517504. Its totient is φ = 4570320.

The previous prime is 5042507. The next prime is 5042539. The reversal of 5042521 is 1252405.

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 5042521 - 2⁷ = 5042393 is a prime.

It is a Duffinian number.

5042521 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5042551) 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, 5716 + ... + 6538.

It is an arithmetic number, because the mean of its divisors is an integer number (689688).

Almost surely, 2^5042521 is an apocalyptic number.

It is an amenable number.

5042521 is a deficient number, since it is larger than the sum of its proper divisors (474983).

5042521 is a wasteful number, since it uses less digits than its factorization.

5042521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 5042521 is about 2245.5558331959. Note that the first 3 decimals coincide. The cubic root of 5042521 is about 171.4809596170.

Adding to 5042521 its reverse (1252405), we get a palindrome (6294926).

It can be divided in two parts, 504 and 2521, that added together give a square (3025 = 55²).

The spelling of 5042521 in words is "five million, forty-two thousand, five hundred twenty-one".