5420523 has 4 divisors (see below), whose sum is σ = 7227368. Its totient is φ = 3613680.

The previous prime is 5420509. The next prime is 5420531. The reversal of 5420523 is 3250245.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 5420523 - 2⁸ = 5420267 is a prime.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5420523.

It is not an unprimeable number, because it can be changed into a prime (5420543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 903418 + ... + 903423.

It is an arithmetic number, because the mean of its divisors is an integer number (1806842).

Almost surely, 2^5420523 is an apocalyptic number.

5420523 is a deficient number, since it is larger than the sum of its proper divisors (1806845).

5420523 is a wasteful number, since it uses less digits than its factorization.

5420523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1806844.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 5420523 is about 2328.2016665229. The cubic root of 5420523 is about 175.6630411552.

Adding to 5420523 its reverse (3250245), we get a palindrome (8670768).

The spelling of 5420523 in words is "five million, four hundred twenty thousand, five hundred twenty-three".