65572403 has 4 divisors (see below), whose sum is σ = 70616448. Its totient is φ = 60528360.

The previous prime is 65572391. The next prime is 65572411. The reversal of 65572403 is 30427556.

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

It is a cyclic number.

It is not a de Polignac number, because 65572403 - 2⁴ = 65572387 is a prime.

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 65572403.

It is not an unprimeable number, because it can be changed into a prime (65572433) 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, 2522003 + ... + 2522028.

It is an arithmetic number, because the mean of its divisors is an integer number (17654112).

Almost surely, 2^65572403 is an apocalyptic number.

65572403 is a deficient number, since it is larger than the sum of its proper divisors (5044045).

65572403 is a wasteful number, since it uses less digits than its factorization.

65572403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5044044.

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 65572403 is about 8097.6788649588. The cubic root of 65572403 is about 403.2493720609.

Adding to 65572403 its reverse (30427556), we get a palindrome (95999959).

The spelling of 65572403 in words is "sixty-five million, five hundred seventy-two thousand, four hundred three".