5021523 has 24 divisors (see below), whose sum is σ = 7888608. Its totient is φ = 3059712.

The previous prime is 5021519. The next prime is 5021531. The reversal of 5021523 is 3251205.

It is a happy number.

It is not a de Polignac number, because 5021523 - 2² = 5021519 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 5021496 and 5021505.

It is not an unprimeable number, because it can be changed into a prime (5021503) 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 23 ways as a sum of consecutive naturals, for example, 19411 + ... + 19667.

It is an arithmetic number, because the mean of its divisors is an integer number (328692).

Almost surely, 2^5021523 is an apocalyptic number.

5021523 is a deficient number, since it is larger than the sum of its proper divisors (2867085).

5021523 is a wasteful number, since it uses less digits than its factorization.

5021523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443 (or 440 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 5021523 is about 2240.8754985496. The cubic root of 5021523 is about 171.2426021988.

Adding to 5021523 its reverse (3251205), we get a palindrome (8272728).

It can be divided in two parts, 502 and 1523, that added together give a square (2025 = 45²).

The spelling of 5021523 in words is "five million, twenty-one thousand, five hundred twenty-three".