4001525303 has 4 divisors (see below), whose sum is σ = 4175504688. Its totient is φ = 3827545920.

The previous prime is 4001525287. The next prime is 4001525309. The reversal of 4001525303 is 3035251004.

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

It is not a de Polignac number, because 4001525303 - 2⁴ = 4001525287 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 173979361 = 4001525303 / (4 + 0 + 0 + 1 + 5 + 2 + 5 + 3 + 0 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4001525309) 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, 86989658 + ... + 86989703.

It is an arithmetic number, because the mean of its divisors is an integer number (1043876172).

Almost surely, 2^4001525303 is an apocalyptic number.

4001525303 is a deficient number, since it is larger than the sum of its proper divisors (173979385).

4001525303 is a wasteful number, since it uses less digits than its factorization.

4001525303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173979384.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 4001525303 is about 63257.6106330298. The cubic root of 4001525303 is about 1587.6027986255.

Adding to 4001525303 its reverse (3035251004), we get a palindrome (7036776307).

The spelling of 4001525303 in words is "four billion, one million, five hundred twenty-five thousand, three hundred three".