5023561 has 4 divisors (see below), whose sum is σ = 5140432. Its totient is φ = 4906692.

The previous prime is 5023559. The next prime is 5023567. The reversal of 5023561 is 1653205.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1653205 = 5 ⋅330641.

It is a cyclic number.

It is not a de Polignac number, because 5023561 - 2¹ = 5023559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5023567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58371 + ... + 58456.

It is an arithmetic number, because the mean of its divisors is an integer number (1285108).

Almost surely, 2^5023561 is an apocalyptic number.

It is an amenable number.

5023561 is a deficient number, since it is larger than the sum of its proper divisors (116871).

5023561 is a wasteful number, since it uses less digits than its factorization.

5023561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116870.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 5023561 is about 2241.3301854033. The cubic root of 5023561 is about 171.2657655047.

Adding to 5023561 its reverse (1653205), we get a palindrome (6676766).

The spelling of 5023561 in words is "five million, twenty-three thousand, five hundred sixty-one".