52400003 has 4 divisors (see below), whose sum is σ = 54678288. Its totient is φ = 50121720.

The previous prime is 52399993. The next prime is 52400017. The reversal of 52400003 is 30000425.

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 52400003 - 2⁶ = 52399939 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (52400503) 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, 1139108 + ... + 1139153.

It is an arithmetic number, because the mean of its divisors is an integer number (13669572).

Almost surely, 2^52400003 is an apocalyptic number.

52400003 is a deficient number, since it is larger than the sum of its proper divisors (2278285).

52400003 is a wasteful number, since it uses less digits than its factorization.

52400003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2278284.

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 52400003 is about 7238.7846355587. The cubic root of 52400003 is about 374.2057334145.

Adding to 52400003 its reverse (30000425), we get a palindrome (82400428).

The spelling of 52400003 in words is "fifty-two million, four hundred thousand, three".