52050921 has 16 divisors (see below), whose sum is σ = 76009920. Its totient is φ = 31487040.

The previous prime is 52050919. The next prime is 52050931. The reversal of 52050921 is 12905025.

It is not a de Polignac number, because 52050921 - 2¹ = 52050919 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 52050891 and 52050900.

It is not an unprimeable number, because it can be changed into a prime (52050931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9010 + ... + 13611.

It is an arithmetic number, because the mean of its divisors is an integer number (4750620).

Almost surely, 2^52050921 is an apocalyptic number.

It is an amenable number.

52050921 is a deficient number, since it is larger than the sum of its proper divisors (23958999).

52050921 is a wasteful number, since it uses less digits than its factorization.

52050921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22696.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 52050921 is about 7214.6324230691. The cubic root of 52050921 is about 373.3729113193.

Adding to 52050921 its reverse (12905025), we get a palindrome (64955946).

The spelling of 52050921 in words is "fifty-two million, fifty thousand, nine hundred twenty-one".