4025523 has 4 divisors (see below), whose sum is σ = 5367368. Its totient is φ = 2683680.

The previous prime is 4025521. The next prime is 4025543. The reversal of 4025523 is 3255204.

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

It is not a de Polignac number, because 4025523 - 2¹ = 4025521 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 4025523.

It is not an unprimeable number, because it can be changed into a prime (4025521) 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, 670918 + ... + 670923.

It is an arithmetic number, because the mean of its divisors is an integer number (1341842).

Almost surely, 2^4025523 is an apocalyptic number.

4025523 is a deficient number, since it is larger than the sum of its proper divisors (1341845).

4025523 is a wasteful number, since it uses less digits than its factorization.

4025523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341844.

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

The square root of 4025523 is about 2006.3706038516. The cubic root of 4025523 is about 159.0770166026.

The spelling of 4025523 in words is "four million, twenty-five thousand, five hundred twenty-three".