52781803 has 4 divisors (see below), whose sum is σ = 55076688. Its totient is φ = 50486920.

The previous prime is 52781797. The next prime is 52781819. The reversal of 52781803 is 30818725.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52781803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52781843) 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, 1147408 + ... + 1147453.

It is an arithmetic number, because the mean of its divisors is an integer number (13769172).

Almost surely, 2^52781803 is an apocalyptic number.

52781803 is a deficient number, since it is larger than the sum of its proper divisors (2294885).

52781803 is a wasteful number, since it uses less digits than its factorization.

52781803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2294884.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 52781803 is about 7265.1086020788. The cubic root of 52781803 is about 375.1123882396.

The spelling of 52781803 in words is "fifty-two million, seven hundred eighty-one thousand, eight hundred three".