52921803 has 32 divisors (see below), whose sum is σ = 80110080. Its totient is φ = 30792960.

The previous prime is 52921801. The next prime is 52921807. The reversal of 52921803 is 30812925.

It is a happy number.

It is not a de Polignac number, because 52921803 - 2¹ = 52921801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52921801) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 108426 + ... + 108912.

It is an arithmetic number, because the mean of its divisors is an integer number (2503440).

Almost surely, 2^52921803 is an apocalyptic number.

52921803 is a deficient number, since it is larger than the sum of its proper divisors (27188277).

52921803 is a wasteful number, since it uses less digits than its factorization.

52921803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 52921803 is about 7274.7373148451. The cubic root of 52921803 is about 375.4437484701.

The spelling of 52921803 in words is "fifty-two million, nine hundred twenty-one thousand, eight hundred three".