52054021 has 4 divisors (see below), whose sum is σ = 52096000. Its totient is φ = 52012044.

The previous prime is 52054019. The next prime is 52054027. The reversal of 52054021 is 12045025.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52054021 - 2¹ = 52054019 is a prime.

It is a super-2 number, since 2×52054021² = 5419242204536882, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52054021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52054027) 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, 19071 + ... + 21628.

It is an arithmetic number, because the mean of its divisors is an integer number (13024000).

Almost surely, 2^52054021 is an apocalyptic number.

It is an amenable number.

52054021 is a deficient number, since it is larger than the sum of its proper divisors (41979).

52054021 is a wasteful number, since it uses less digits than its factorization.

52054021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41978.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 52054021 is about 7214.8472610305. The cubic root of 52054021 is about 373.3803235035.

Adding to 52054021 its reverse (12045025), we get a palindrome (64099046).

The spelling of 52054021 in words is "fifty-two million, fifty-four thousand, twenty-one".