52003557 has 6 divisors (see below), whose sum is σ = 75116262. Its totient is φ = 34669032.

The previous prime is 52003519. The next prime is 52003559. The reversal of 52003557 is 75530025.

It can be written as a sum of positive squares in only one way, i.e., 44435556 + 7568001 = 6666^2 + 2751^2 .

It is a de Polignac number, because none of the positive numbers 2^k-52003557 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52003557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52003559) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2889078 + ... + 2889095.

It is an arithmetic number, because the mean of its divisors is an integer number (12519377).

Almost surely, 2^52003557 is an apocalyptic number.

It is an amenable number.

52003557 is a deficient number, since it is larger than the sum of its proper divisors (23112705).

52003557 is a wasteful number, since it uses less digits than its factorization.

52003557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5778179 (or 5778176 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 27.

The square root of 52003557 is about 7211.3491802852. The cubic root of 52003557 is about 373.2596260916.

The spelling of 52003557 in words is "fifty-two million, three thousand, five hundred fifty-seven".