52104921 has 16 divisors (see below), whose sum is σ = 75959040. Its totient is φ = 31507920.

The previous prime is 52104911. The next prime is 52104929. The reversal of 52104921 is 12940125.

It is not a de Polignac number, because 52104921 - 2⁵ = 52104889 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 52104891 and 52104900.

It is not an unprimeable number, because it can be changed into a prime (52104929) 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, 15750 + ... + 18768.

It is an arithmetic number, because the mean of its divisors is an integer number (4747440).

Almost surely, 2^52104921 is an apocalyptic number.

It is an amenable number.

52104921 is a deficient number, since it is larger than the sum of its proper divisors (23854119).

52104921 is a wasteful number, since it uses less digits than its factorization.

52104921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3556.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 52104921 is about 7218.3738473426. The cubic root of 52104921 is about 373.5019847245.

The spelling of 52104921 in words is "fifty-two million, one hundred four thousand, nine hundred twenty-one".